Optical Choppers
Intercept current or beams of radiation on a periodic basis.
See Also: Lock-in Amplifiers
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Product
Miniature Rotating Optical Choppers
350C and 350CD
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Model 350 is a high stability variable frequency optical chopper. The basic system consists of a control unit and a chopping head. It is supplied with four chemically blacked 30 mm diameter discs. These discs are of 2, 4, 10 and 40 slots and allow operation over the frequency range 10 Hz to 10 kHz.
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Product
Optical Chopper
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These high stability variable frequency optical choppers each include a set of chemically blackened photoetched chopping discs. The mini chopper is an excellent choice for applications requiring a compact package. The chopping discs come in a variety of slot apertures and allow operation. Beam diameter is limited to 0.75mm when using the 200-slot disc and 1.0mm when using the 40 slot mini disc. The easy-to-interchange blades are made of non-magnetic, half hard brass and can be used in combination. Chopping frequency is set by adjusting a ten-turn dial or by applying an external DC voltage to the BNC input. Reference output is a TTL pulse and is in-phase with chopping action. The 5 digit led display gives a direct read-out of the chopping frequency. Power: 90-130V or 180-260V; 50/60Hz; 12VA max. Power supply included. Choppers are often used together with lock-in amplifiers.
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Product
Large Rotating Disc Optical Chopper
L340CD
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An optical chopper based on 200 mm diameter discs. The larger disc size allows larger diameter beams to be chopped.
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Product
Rotating Optical Chopper
300C and 300CD
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Scitec Instruments Model 300 is a high stability variable frequency optical chopper. The basic system consists of a control unit, a chopping head and a set of four chemically blacked photo etched discs. This system provides operation over the frequency range 5Hz to 3kHz.
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Product
Optical Chopper
SR540
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Stanford Research Systems, Inc.
The SR540 chopper will handle all your optical chopping requirements?from simple measurements to dual-beam and intermodulation experiments. The SR540 has a 4-digit frequency display, front-panel frequency control, analog voltage frequency control and two reference outputs with selectable operating modes.
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Product
High Speed Optical Choppers
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The Optical Choppers offered by Hinds Instruments are resonant devices designed to work at one frequency. We offer two ways to chop light: a High Speed Optical Chopper (HSOC) and a Photoelastic Modulator (or PEM).
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Product
Saluki SE3001 Optical Chopper (1Hz - 10kHz)
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SE3001 Optical Chopper is high-precision optical equipment with its chopper frequencies from 1 Hz to 10 kHz. With the advantage of PID technology and high-quality motor, the frequency accuracy of SE3001 is up to 0.5%. SE3001 consists of a console, a chopper head and a control line. The main function of the console is to control the speed of the motor to achieve the target speed. The chopper head is mainly composed of a base and a motor with a blade.
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Product
Power Probes
RkP-500 Series
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The RkP-500 Series probes take advantage of synchronous detection (chopper/lock-in amplifier) technology to offer unparalleled background noise rejection, S/N ratio, and sensitivity. Total power, average power, and irradiance can be measured. The probes can be mounted directly onto the Rk-570C Optical Chopper to form an integrated measurement system, or the chopper can be operated remotely from the probe.
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Product
Ultra Miniature Rotating Optical Chopper
360C
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A small compact low cost system suitable for OEM use. 10 Hz - 14,000 Hz standard chopping frequency range.
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Product
Photoluminescence & Electroluminescence Measurement System (PL/EL)
PL
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PL/EL Measurement System includes Laser, Spectrometer, Lock-in amplifier, Optical Chopper, Sample Holder(PL/EL), PMT/CCD, Fiber, Optical optics, Optical Table, Refrigerator（low temperature）,Sample Chamber and related accessories;
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Product
Short Range Straightness Optics
10774A
Optical Module
The Keysight 10774A Short Range Straighness Optics combines a straightness interferometer and reflector to make measurements over a range of travel up to 3 m (10 ft). The optics form a highly-accurate optical straightedge that can measure the straightness of travel of machine-tool and measuring-machine coordinate motions with a resolution of 0.04 micrometer (1 uin).
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Product
Optical Modulation Analyzer and High-speed Digitizer Test Solution
M8290A
Optical Receiver
The M8290A is a flexible solution platform for 400G coherent component and transmitter test. It incorporates a 92 GSa/s modular optical modulation analyzer and a 92 GSa/s 4-channel electrical digitizer. Besides these modules an additional arbitrary waveform generator module up to 92 GSa/s, such as the M8196A, can be added to the same AXIe chassis. This setup results in a compact and flexible coherent test solution that can be used together with additional specialized solution software for Integrated Coherent Receiver (ICR) and Analog Coherent Optical (ACO) module characterization.
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Product
Variable Optical Attenuator Module for Multimode Fiber Applications
81578A
Optical Attenuator
The Keysight 81578A variable optical attenuator is designed for multimode fiber applications and features lowest insertion loss and excellent wavelength flatness over a complete attenuation range of 60 dB, for characterizing optical network components for telecommunication and data communication in systems.
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Product
Broadband Optical Source - MATRIQ
Optical Source
Our SLED MATRIQ instrument is a compact super-luminescent LED light source with high output power, large bandwidth and low spectral ripple.The SLED comes in various wavelength models to address various key applications across telecom and datacom, and is ideal for building a customized optical testing platform that delivers reliable and repeatable results.
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Product
PXI Single 4 Channel Mux Fibre Optic LC
40-850-414
Fiber Optic Switch
The 40-850-414 4-channel multiplexer is part of Pickering's range of PXI Fiber Optic MEMS Switching modules. They are available in many high density formats with a choice of different connector styles to suit most applications: FC/APC (for optimal performance), FC/PC and SC/PC for general applications and LC and MU for high density applications. Fiber optic multiplexers create a signal path by redirecting the optical signal into a selected output fiber. This is achieved using Micro-Mechanical Mirrors driven by a highly precise mechanism and activated via an electrical control signal.
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Product
Automated Optical Switch - PXI
Optical Switch
Add optical switching capability to your test system with Quantifi Photonics’ automated optical switches. The fast and reliable optical switch will enable automated sequential testing, saving time and streamlining your test procedures.
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Product
Mini Fiber Optic, Patchcord, Receiver, 36", Multimode, 62.5/125, to LC
7-416804512-036
Fiber Optic Patchcord
Mini Fiber Optic, Patchcord, Receiver, 36", Multimode, 62.5/125, to LC.
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Product
One-Channel Variable Optical Attenuator
N7761A
Optical Attenuator
The N7761A attenuator is an extension to Keysight's high density N77xx-family that establishes a new standard in space-saving fiberoptic instrumentation.
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Product
PXI Optical Switch
Optical Switch
The PXI Optical Switch is available in many different switching configurations for customized optical switching. It offers both single-mode and multimode fiber options that can support switching of very small wavelength signals. The switch provides either SC/PC, FC/PC, SC/APC, or FC/APC fiber-optic connectors. You can use the PXI Optical Switch for repeatable, low-loss switching.
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Product
Silicon Optical Power Head
81620C
Optical Power Sensor
The new 81620C optical power head provides a 5 mm detector area and allows flexible placement of the remote optical power meter, which is then connected to the N7749C. The 81620C accepts parallel beams with up to 4 mm diameter, standard SM fiber and MM fiber with max. 100 μm core diameter, NA ≤ 0.3. A wide choice of adapters allows input from popular fiber connector types, bare fibers or open beams. The magnetic D-shaped adapters allow rapid removal and replacement without twisting attached fibers.
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Product
PXI Single 8 Channel Optic Mux FC/PC
40-852-118
Fiber Optic Switch
The 40-852-118 8-channel multiplexer is part of Pickering's range of PXI Fiber Optic MEMS Switching modules. They are available in many high density formats with a choice of different connector styles to suit most applications: FC/APC (for optimal performance), FC/PC and SC/PC for general applications and LC and MU for high density applications. Fiber optic multiplexers create a signal path by redirecting the optical signal into a selected output fiber. This is achieved using Micro-Mechanical Mirrors driven by a highly precise mechanism and activated via an electrical control signal.
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Product
Dual 2 Channel Fibre Optic Mux SC/PC
40-815-222
Fiber Optic Switch
Pickering PXI Fiber Optic Multiplexers connect a single channel to one of two or four channels. They are available in single or dual multiplexer configurations supporting single-mode or multi-mode fiber. A wide choice of connectors types is available. The 40-810 multiplexer connects the optical channel by redirecting the optical signal into a selected output fiber.
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Product
Single Optical Head Interface Module
81618A
Optical Module
The single-channel interface module is used to connect optical heads ( Keysight 8162x ) to the mainframes 8163A/B, 8164A/B or 8166A/B.
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Product
1x13 Optical Switch
N7734A
Optical Switch
The N7734A is a 1x13 fiberoptic switch, available for single-mode or multimode fiber connections. These enhance accurate measurements and ease automation with excellent repeatability, fast switching time and flexible interfacing with LAN, USB and GPIB.
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Product
Single-Mode Fiber Optic To RS-232/422/485 Converter
ADAM-4542+
Serial-to-Fiber Optic Converter
1 x SC fiber connectorOperation mode: Point-to-Point,Redundant and Ring(half-duplex)Half/Full-duplex, bidirectional transmission modeAutomatic RS-485 data flow controlLED indicator to monitor status
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Product
Mini Fiber Optic, Patchcord, ITA, 36", Multimode, 62.5/125, to LC
7-415804512-036
Fiber Optic Patchcord
Mini Fiber Optic, Patchcord, ITA, 36", Multimode, 62.5/125, to LC
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Product
Mini Fiber Optic, Patchcord, Receiver, 36", Multimode, 62.5/125, Single Ended
7-416804000-036
Fiber Optic Patchcord
Mini Fiber Optic, Patchcord, Receiver, 36", Multimode, 62.5/125, Single Ended.
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Product
Mini Fiber Optic, Patchcord, ITA, 36", Polymer Optic Fiber, Single Ended
7-413845000-036
Fiber Optic Patchcord
Mini Fiber Optic, Patchcord, ITA, 36", Polymer Optic Fiber, Single Ended.
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Product
Automated Optical Switch - MATRIQ
Optical Switch
Add optical switching capability to your test system with Quantifi Photonics’ automated optical switches. The fast and reliable optical switch will enable automated sequential testing, saving time and streamlining your test procedures.
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Product
Mini Fiber Optic, Patchcord, ITA, 36", Polymer Optic Fiber, to SC
7-413845510-036
Fiber Optic Patchcord
Mini Fiber Optic, Patchcord, ITA, 36", Polymer Optic Fiber, to SC.
