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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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10 GHz Signal Source
YIG Series
The SC5503B and SC5502A are designed to meet demanding low phase noise applications. This is accomplished by employing a multiple phase-locked loop architecture as well as a YIG oscillator as the heart of its synthesizer. Frequency accuracy is provided by an onboard 10 MHz temperature compensated crystal oscillator (TCXO) which can be phase locked to an external reference source if required. These modules can be used as standalone CW signal sources or as LO sources for frequency conversion systems such as the SignalCore IQ modulators and demodulators. They are designed to meet the requirements of many modern applications such as wireless device testing, software-defined radio research, point-to-point radio, multi-channel coherent systems, and other academic and military programs.
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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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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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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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QPSK Quadraphase Modulators To 1880 MHz
QPSK Modulators incorporate a 90° hybrid, 2-way 0° divider and two BPSK Modulators to phase shift an input signal by 0°, 90°, 180°, and 270° by injecting ± 20 mA control signals at ports D1 and D2.
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Isolated ADCs
Isolated analog-to-digital converters (ADCs) are second-order sigma-delta modulators that convert analog values into a 1-bit stream and are able to withstand high common-mode voltages.Combining a high-frequency external clock input and wide bandwidth, our isolated ADCs provide very high accuracy thanks to the improved signal-to-noise ratio (SNR). The isolation grade and a high level of transient immunity are keys to reliably sensing currents and voltages to ensure the robustness and high performance of many industrial applications.
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Demodulator
D400
Computer Conversions Corporation
The MOD 500 and D400 series of solid state modulators and demodulators are hi-accuracy, low cost, miniature, phase sensitive converters designed for military and industrial control applications.
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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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Mission Data Transmitters
L3 Cincinnati Electronics (L3 CE) offers a wide choice of modulators and transmitters for spacecraft ranging from X-Band to Ku-Band. All the products listed below can be customized to specific user requirements.
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High Frequency Modules
Digital Signal Technology, Inc.
Modulators, frequency dividers, amplifiers, filters, etc.
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Lightwave Transmitter Analyzer Bundle
N4364A
The N4364A Lightwave Transmitter Analyzer Bundle consists of a calibrated OE-converter - the N4377A Lightwave Detector - and Vector Network Analyzer - either from the PNA- or from the Streamline Series USB-family - and is a cost-effective solution to test the frequency response of optical transmitters such as directly modulated lasers diodes (DMLs), Mach-Zehnder Modulators (MZMs) or other devices.
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Spatial Light Modulators
Spatial Light Modulators (SLM) are used as adaptive optical elements that modulates light spatially in amplitude or phase. We offer devices that are based on either reflective (LCOS) or translucent (LCD) liquid crystal microdisplays.
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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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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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IQ Mixers
The new MMIC IQ mixers from Fairview (also known as IQ modulators) utilize a highly reliable GaAs MESFET semiconductor process which integrates a pair of matched double balanced mixer cells, a 90-degree hybrid and a 0-degree splitter/combiner that produces exceptional amplitude and phase balance performance. This level of integration offers size and performance advantages in comparison to discrete module assemblies. With the addition of an external 90-degree IF hybrid module, these IQ mixers can be used as either a Single Sideband Up-converter Mixer or an Image Reject Down-converter Mixer. The benefit of image rejection and sideband suppression can reduce overall system cost and complexity by removing the need for pre-selection filtering. Typical applications include point-to-point and point-to-multipoint radio, VSAT, military radar, electronic warfare, satellite communications, test equipment, and sensors.
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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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Modulators
ZMOD-X1
Antenna Technology Communications, Inc.
The ZMOD-X1 modulator series is an all inclusive unit that is loaded with features most needed by broadcasters. In it's most basic form, the unit comes with DVBS, DVBS2 and 8PSK modulation schemes, IF output, L band output and ASI input all as standard features. 16 APSK modulation and IP input are provided as options. Taking mobile and portable systems in mind, the unit comes with clear and user friendly front panel control. Size and weight are significantly less than any unit on the market. The unit can also be monitored and controlled using any web browser.
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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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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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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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MICROWAVE SWITCHING DIODES FROM 1 to 40 GHz
Insight Product Company offers Microwave Switching Diodes with switching time up to 3 nsec and operating in frequency range from 1 to 40 GHz. The p+ -n - n+ silicon spackage-less switching diodes are designed to be used in microwave switching devices, phase changers, modulators, microwave attenuators - parts of hybrid microcircuits that provide capsulation and protection against ambient action.
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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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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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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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Schottky Barrier Ring 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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TWT Amplifiers
dB Control designs and manufactures high-power microwave amplifiers, transmitters, high- and low-voltage power supplies and modulators for radar, electronic warfare (EW), electronic countermeasures (ECM) and data link applications. The modularity of our designs enables us to rapidly configure power products for custom applications. Our products can meet your specifications and platforms requirements for ground-based, shipborne and high-altitude military manned and unmanned aircraft.
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Basic Pulsed-RF Measurements
S96025B
Enables internal pulse generators to control the internal pulse modulators and provides an integrated pulse application that uses the wideband-detection method. Requires hardware Option 021 pulse modulator hardware.
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Basic Pulsed-RF Measurements
S95025B
Eliminate the need for external test sets and pulse generators using the built-in pulse modulators in the PXI VNA pulsed-RF measurement solution. S95025B also controls external pulse generators and modulators and can synchronize to external master pulses. If using external master pulses or external pulse modulators, the Y1731A PXI adapter odule is recommended.
