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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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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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I/Q Demodulators
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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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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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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IQ Modulators 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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IQ Vector Modulators
PMI offers a various I/Q Vector Modulators having analog control or digital controls and we can design models that meet your specific needs. We can offer up to 40 GHz operating frequencies.
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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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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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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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Modulator Drivers
Is ideal for driving external mach-zender modulators in 100Gbps DP-QPDK applications.
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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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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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PC/104 SBC with Vortex86DX3 1GHz CPU and Data Acquisition
HELIX
The HELIX family of PC/104 SBCs combines mid-range CPU performance, standard PC I/O, and on-board data acquisition circuitry in a compact size and at a competitive price. Available PC I/O includes 3 or 6 USB 2.0 (model dependent), 4 serial ports (2 RS-232/422/485 and 2 RS-232), 1 10/100Mbps Ethernet, 1 Gigabit Ethernet, and a SATA port. The optional data acquisition circuit includes 16 16-bit analog inputs, 4 16-bit analog outputs and 27 digital I/O lines configurable as counter/timers and pulse width modulators.
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Transmitters
We offer reference transmitters for both digital and linear applications, calibrated electrical-to-optical converters for use with VNAs, and optical transmitters with phase modulators. These devices are based on proven lithium niobate (LiNbO3) modulator technology driven by high-fidelity RF amplifiers.
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Vector Modulators
Analog Devices high dynamic range vector modulator RF ICs offer 360° continuous phase control, a continuous gain control of 40 dB, and a low output noise floor of at least –160 dBm/Hz at the maximum gain setting.
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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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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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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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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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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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Bi-Phase Modulators
PMI's line of Bi-Phase Modulators includes a comprehensive selection of different models which cover broad octave frequency bands ranging from 0.5 to 40 GHz. Bi-phase modulators take a TTL level digital bits stream that’s encoded onto the RF carrier using 2 Phase Shift Keying (2PSK) modulation, where the 2 phases are separated by 180º. This performance is desirable in communications systems, microwave radio, radar, high data rate test & measurement, serial data transmission, base station infrastructure, and other industrial and military applications.
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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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Pulse Generators
Active Technologies Pulse Generators can be used to set up continuous or triggered pulse streams and offers flexibility to address the most challenging applications like big physics, automated testing, microwaves, modulators, wireless communication, medical and chemistry.
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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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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.
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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.
