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Modulators
Are devices which varies a characteristic of a repetitious electrical or electromagnetic wave of less than infrared frequency in accordance with a characteristic of an arbitrarily varying information carrying signal.
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Electro-Optic Modulators
Thorlabs’ selection of electro-optic (EO) modulators includes free-space and fiber-coupled LiNbO3 modulators. Free-space amplitude, phase, or resonant modulators can operate at speeds up to 100 MHz. We also offer liquid crystal EO modulators for speeds up to 2.5 kHz. Fiber-coupled intensity, phase, or IQ modulators for speeds up to 40 GHz can be driven by our EO modulator drivers. A modulator bias controller is also available for use with fiber-coupled intensity modulators.
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All-standard VHF/UHF/L-band Modulator For PCIe
DTA-2115B
DekTec's highest-end modulator for satellite, terrestrial and cable standards, up to the latest standards such as ATSC 3.0. The DTA-2115B can be a single-channel 72-MHz bandwidth modulator, or it can function as eight independent 8-MHz modulators.
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Modulators
A modulator is an electronic circuit that superimposes a low-frequency (information) signal onto a high-frequency (carrier) signal for the purpose of wireless transmission. The reason for this is that higher frequency signals can be received using shorter aerials, which are more practical than longer ones. The information signal can be either analog or digital.
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IQ Networks
Teledyne Microwave Solutions (TMS) offer a capable range of high performance IQ Modulators and Image Reject Mixers as well as IQ (Quadraphase) Modulators which can be used on applications from commercial test equipment to space qualified projects. IQM products can be used either as an IQ modulator or IQ demodulator and cover several frequency bands from 1.4 GHz to 18 GHz.
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Modulators
The modulator line was recently completed with two all-digital modulators, the DTA-2115B high-end test modulator for PCIe and the portable DTU-315 for USB-3, both summits of technology and design.
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High Frequency Modules
Digital Signal Technology, Inc.
Modulators, frequency dividers, amplifiers, filters, etc.
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Modulators / Demodulators
Mini-Circuits QPSK Modulator and I/Q Modulator / Demodulators are available in connectorized or surface mount packages up to 2000 MHz. These components provide excellent harmonic suppression as well as good carrier and sideband rejection while maintaining low conversion loss over the operating frequency band.
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Schottky Diodes
SemiGen’s Silicon Schottky Diodes are designed for applications through 40Ghz. The special process technology utilizes various metal schemes to provide excellent performance of Low, Medium, and High Barrier applications. The end result is a low resistance diode with tightly controlled capacitance which allows for optimum performance. Low conversation loss and superior TSS make these diodes ideal for detector / mixer applications with frequency ranges from S band to Ka band as well as modulators, lower power limiters and high speed switches.
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RF Upconverters
SignalCore offers traditional multi-stage and single-stage RF upconverters, and Direct IQ modulators that feature low phase noise, high dynamic range, wide bandwidth, and continuous tuning. SignalCore RF upconverters are compact and built for mechanical robustness and ruggedness. Applications include various test and measurement applications such as those in point-to-point radio, wireless communication, ATE, and software-defined radio. All products are provided with a Graphical User Interface (GUI), driver, and API for easy programming control.
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receivers & Modulators
Blonder Tongue Laboratories, Inc.
Enabling remote monitoring, signal testing, and virtual mapping that reduce truck rolls, the Aircaster Series of Transmodulators is ideal for incorporating off-air content without paying additional fees for local cable and satellite services
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PNA Network Analyzers
The PNA Series of network analyzers offers industry-leading performance for testing amplifiers, mixers, and frequency converters. Built-in pulse modulators and pulse generators provide pulsed S-parameter measurements quickly and accurately. All models are available in two-port single-source and four-port dual-source versions.
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Basic Pulsed-RF Measurements Lite
S95024B
Using built-in pulse modulators, the PXI VNAs are complete pulsed-RF measurement solutions, eliminating the need for external test sets and pulse generators. Lite version of S95025B Basic Pulsed-RF Measurements.
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Optics
Welcome to Thorlabs; below you will find links to optical components and systems, a subset of our entire line of photonics products. All single element optical components can be found under the optical elements link with the exception of optical components that have polarization properties since they have a separate link. Multi-element systems like beam expanders and objective lenses as well as interferometers, fiber collimators, reference cells, modulators, and other optical devices can be found by choosing the optical systems link. Thorlabs also manufactures an extensive line of free-space and fiber optic isolators; stock items ship the same day that they are ordered while our custom orders benefit from our streamlined design and manufacturing process, which minimizes lead time.
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Beam Lead PIN Diodes
The SemiGen SBL 2000 series Beam Lead PIN Diodes feature fast switching speeds at both low capacitance and resistance. Beam Lead PIN Diodes have high levels of mechanical strength and stability during assembly. These diodes are suitable for microstrip or stripline circuits as well as circuits requiring high isolation from a series of mounted diodes such as multi-throw switches, phase shifters, attenuators and modulators.
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I/Q Modulators
Analog Devices I/Q modulators and demodulators operate at frequencies up to microwave and feature a combination of high performance, broadband operating frequency, and flexibility.
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HDTV Encoder Modulators
All-in-one 4 Channel Full HD Compact Encoder Modulator which integrates encoding MPEG-2, MPEG-4/H.264 modulation to convert HDMI/YPbPr /CVBS signals to digital RF output. To meet customers various requirements the B-QAM-HDMI-IP-4CH is also equipped with 1 ASI input and 2 ASI output ports.
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Oscillators
Ducommun’s oscillator family includes FET based dielectric resonator oscillators (OFD), phase locked oscillators (OPL), Gunn diode based low cost Gunn oscillators (OGL), bias tuned Gunn oscillators (OGB), mechanically tuned oscillators (OGM), varactor tuned Gunn oscillators (OGV), injection locked Gunn oscillators (OGI) and Gunn oscillator bias regulators and modulators (OGR and OMR). In the mechanically tuned Gunn oscillator family, the ultra broadband series (OGF) delivers up to full waveguide tuning bandwidth.
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Compact TV Analyzer
ETC
Shenzhen Wellcore Technology Co., Ltd.
The R&S®ETC compact TV analyzer offers a comprehensive set of measurement functions for DVB-T2, DVB-T/DVB-H and ISDB-T digital TV transmitter testing. It is also useful for service and maintenance of TV transmitters as well as for testing modulators in R&D or quality assurance environments. The design of the analyzer is ideal for coverage measurements in broadcast network planning.
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Schottky Barrier Bridge Quads
SemiGen’s Silicon Schottky Diodes are designed for applications through 40Ghz. The special process technology utilizes various metal schemes to provide excellent performance of Low, Medium, and High Barrier applications. The end result is a low resistance diode with tightly controlled capacitance which allows for optimum performance. Low conversation loss and superior TSS make these diodes ideal for detector / mixer applications with frequency ranges from S band to Ka band as well as modulators, lower power limiters and high speed switches.
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High-Speed Switching Diodes 33 To 140 GHz
Insight Product Company offers high-speed switching diodes with switching time up to 2 nsec and operating frequency range up to 140 GHz. Silicon p+-p-n-n+ high-speed switching diodes are designed to be used in mm-wave switching devices, phase changers, modulators, attenuators for the millimeter wavelength range. They are fabricated in the metal-ruby packages with hard-lead carrier (diameter 3.0 mm, 1.5 mm).
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Light
Welcome to Thorlabs; below you will find links to light emitters, sources, and controllers, a subset of our entire line of photonics products. Our light sources are conveniently separated into coherent and incoherent sources. The coherent source category includes laser diodes, laser diode modules, tunable lasers, HeNe lasers, and femtosecond lasers, while the incoherent source link brings you to a selection of LEDs, white light, and broadband SLD sources. The Quantum Electronics category includes optical amplifiers, modulators, and gain elements that are frequently used in research and OEM applications. All of our light sources and optical amplifiers are supported by an extensive line of mounts, sockets, TEC controllers, and current controllers.
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Medical Modulators
Te;edyne e2v offers a range of compact modulator systems based around its patented solid-state switching technology. High power pulsed systems are developed for radar and for linear accelerators used in industrial, scientific and medical applications.The compact modulator is a direct switching unit, designed to drive either our microwave tubes or those from other manufacturers. The high voltage modulators and semiconductor switches provide a real proven alternative to conventional "line and hard valve type" modulator technology. Using innovative assemblies of solid-state switches, together with compatible power supplies and energy storage units, gives a significant improvement in pulse shape and quality. A flexible control system gives the ability to remotely vary the pulse parameters on a pulse-to-pulse basis. These features make the units ideal for systems where precise energy control is essential.
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Modulator Drivers
Is ideal for driving external mach-zender modulators in 100Gbps DP-QPDK applications.
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IQ Networks
Teledyne RF & Microwave offers a capable range of high performance IQ Modulators and Image Reject Mixers as well as IQ (Quadraphase) Modulators which can be used on applications from commercial test equipment to space qualified projects. IQM products can be used either as an IQ modulator or IQ demodulator and cover several frequency bands from 1.4 GHz to 18 GHz. Click on the model number to view the available datasheets.
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Precision Modulators/Demodulators
Analog Devices precision modulators and demodulators support balanced modulation and demodulation, synchronous detection, signal recovery, and a range of other applications in industrial, medical, and communications markets. Our devices are specified over a temperature range of –40°C to +85°C and have the low power consumption that makes them ideal for battery-powered and low voltage systems.
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Modulator Driver
A compact bias control board designed to maintain the linear operating point of optical intensity modulators. Featuring a compact miniature design for OEM integration, the BCB-4 allows for a stable Q+, Q-, Min and Max operation over long periods of time. With a USB 2.0 DC power and monitor interface standard, the BCB-4 unit is the ideal choice for industrial and OEM applications when paired with any of Optilab’s wide variety of optical modulators. Please contact us at +1(480)719-1502 or email sales@oequest.com for more info.
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voltage controlled crystal oscillator
VCXO
A VCXO (Voltage Controlled Crystal Oscillator) is a crystal oscillator the output frequency of which is controlled by adding an external control voltage via a frequency control input on a variable capacitance component such as a varactor diode connected in parallel to a load capacitance (CL). Epson VCXOs are divided into two types according to Voltage-Frequency (V-F) characteristic slopes depending on the AFC (Automatic Frequency Control) input configuration of the VCXO. One is a VCXO with a positive V-F slope and the other is a VCXO with a negative V-F slope. Please note that the input voltage of a control circuit will vary according to the individual type, as shown in Figs. 3 and 4. Epson's VCXOs are capable of either, depending on the customer's preference. Epson's VCXOs have been increasingly used for broader applications such as slave oscillators in phased-lock loops, or frequency modulators. Among the above types, a VCXO combined with a TCXO is called a VC-TCXO , respectively. These components have the merit of delicately controlling their output frequency electrically.
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Basic Pulsed-RF Measurements
S93025B
S93025B basic pulsed-RF measurements enables 4 internal pulse generators that can be used to control the internal pulse modulators (N522xB/N524xB Options 021/022), and provides an integrated pulse application that uses the wideband-detection method.
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IQ Demodulators with Integrated LO
Analog Devices IQ modulators and demodulators operate at frequencies up to microwave and feature a combination of high performance, broadband operating frequency, and flexibility.
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17 To 19 GHz QPSK Modulator
CCM19001
The CCM19001 is a Differential Drive Digital QPSK (Quadrature Phase Shift Keying) modulator operating across the 17.0 to 19.0 GHz frequency range. The modulator utilizes differential drive digital inputs (180º apart) to drive both of the bi-phase modulators (mixers) integrated into the assembly. The modulator is a combination of a matched pair bi-phase modulators, which are in quadrature (90º) to each other. It is modulated by switching polarities of the DC voltage controls in 4 different logic states ("0,0", "0,1", "1,0" & "1,1") for 4 phase states. The QPSK modulator provides constant amplitude, 90º vector: 0 (ref.), 90º, 180º, 270º and operates across the -55º to 85º C temperature range.
