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High-Speed Photoreceiver Modules, Fiber Coupled, OEM Package


  • 10 GHz, 25 GHz, and 40 GHz Models
  • Integrated Photodiode and Amplifier
  • Compact, Hermetic Package
  • Volume Pricing Available for OEMs

RX10AF

SM, 10 GHz, 1250 - 1650 nm,
Female 2.92 mm Connector

RX25DF

MM, 25 GHz, 700 - 870 nm,
Differential GPPO® Connectors

Related Items


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RF Receiver
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The RX25AF Ultrafast Photoreceiver Module is used in the RXM25AF Ultrafast Photoreceiver Instrument.

We Design, Develop, and Manufacture Equipment up to 70 GHz

Questions? Demo Unit Requests?

Custom or OEM Applications?

Contact Us

Features

  • High Bandwidth Receivers for up to 10 GHz, 25 GHz, or 40 GHz
    • RX10AF: 10 GHz, 850 - 1650 nm, SM
    • RX25DF: 25 GHz, 700 - 870 nm, MM
    • RX25AF: 25 GHz, 1250 - 1650 nm, SM
    • RX40AF: 40 GHz, 1250 - 1650 nm, SM
  • Fiber-Coupled with FC/PC as Standard; Contact Tech Support for FC/APC Versions
  • AC-Coupled RF Outputs
  • 3.3 V Power Requirement (User Supplied)
  • Available Packaged in Ultrafast Receiver Instruments
  • Discounts for High-Volume Purchases Available; Contact OEM Sales with Inquiries

Thorlabs' RX Series High-Speed Receivers combine a photodiode and transimpedance amplifier in a compact hermetic package with a pigtailed fiber input. Available with maximum bandwidths of 10 GHz, 25 GHz, and 40 GHz to meet user requirements, they are designed for use as components in systems where the user needs a reliable, high-bandwidth detection device. See the specifications for each device below, including fiber type, spectral response, and conversion gain, which are unique to each particular device.

Ideally, these items should be mounted to a printed circuit board (PCB) that supplies power and control signals that are free of noise and spikes. The fiber pigtail allows the input to be routed to another location off the PCB. All these receivers use FC/PC connectors as standard, but FC/APC connectors are available upon request; please contact Tech Support with inquiries. The coaxial output connectors (2.92 mm or dual GPPO®, depending on device) allow for cables to be connected to the device and then routed to the follow-on hardware. The outputs are designed for 50 Ω coaxial cable and should be terminated into 50 Ω equipment to prevent electrical reflections. These components are ESD sensitive, so observe proper storage and handling procedures (see the Operation tab for details).

Clicking the Info icons () below for full specifications and performance graphs for each item. Individual data sheets are also accessible through the Documentation icons () below for complete specifications, application notes, and mounting information.

ESD Sensitive Components: Please note that the components inside these modules are ESD sensitive. Take all appropriate precautions to discharge personnel and equipment before making any electrical connections to the unit. This especially applies to coaxial connecting cables that can accumulate capacitive charge.

Operation Guide for RX10AF Photoreceiver

Please reference the left drawing below for connection options. Unpack the unit carefully making sure to take ESD precautions. For detailed operation procedures, refer to the individual product spec sheet by clicking the Support Docs icon (Docs Icon) for the specific item below. The right diagram below depicts the internal elements of the photoreceiver.

  1. Mount the unit using the Ø2.1 mm mounting holes.
  2. Attach the 2.92 mm output of the unit to the measurement instrument using suitable cables or adapters. The measurement instrument must have a 50 Ω input and adequate bandwidth to resolve the high-speed signal from the detector.
  3. It is critical that the power up and power down sequence is performed correctly:
    1. Power-Up Sequence: Photodiode First, Then Amplifier
    2. Power-Down Sequence: Amplifier First, Then Photodiode
  4. Couple the optical input signal to the photoreceiver via the FC/PC connector after the photodiode and amplifier are biased. Ensure the average input optical power does not exceed 6 dBm.
  5. The DC photocurrent can be monitored using a resistor in series with the bias pin and a voltmeter across the resistor. Make sure that the voltage drop across the resistor does not reduce the bias on the module below its operating voltage.

Click to Enlarge

RX10AF Internal Block Diagram Showing the Photodiode, Amplifier Stage, and RF Output
Component Schematic
Click to Enlarge

RX10AF Device Schematic

Operation Guide for RX25DF, RX25AF, and RX40AF Photoreceivers

Please reference the left drawing below for connection options. Unpack the unit carefully making sure to take ESD precautions. For detailed operation procedures, refer to the individual product spec sheet by clicking the Support Docs icon (Docs Icon) for the specific item below. The right diagram below depicts the internal elements of the photoreceiver.

  1. Mount the unit using the M2.5 x 0.45 mounting holes. It is possible to use M2 screws for mounting if bypassing the M2.5 threads in the feet is desired.
  2. Attach the GPPO® RF outputs of the unit to the measurement instrument using suitable cables or adapters. The measurement instrument must have a 50 Ω input and adequate bandwidth to resolve the high-speed signal from the detector. If only one output is used the other output must be terminated with a high quality 50 Ω termination.
  3. See datasheet for the pin out and detailed instructions to bias the device. It is critical that the power up and power down sequence is performed correctly:
    1. Power-Up Sequence: Photodiode First, Then Amplifier, Then Control Pins
    2. Power-Down Sequence: Control Pins First, Then Amplifier, Then Photodiode
  4. Couple the optical input signal to the photoreceiver via the FC/PC connector. Ensure the average input optical power does not exceed 10 dBm.
  5. The DC photocurrent can be monitored using a resistor in series with the bias pin and a voltmeter across the resistor. Make sure that the voltage drop across the resistor does not reduce the bias on the module below its operating voltage.

Click to Enlarge

RX25DF, RX25AF, and RX40AF Internal Block Diagram Showing the Photodiode,
Amplifier Stages, Control Pins, and Differential RF Outputs
Component Schematic
Click to Enlarge

RX25DF, RX25AF, and RX40AF Device Schematic

Janis Valdmanis, Ph.D. Optics
Ultrafast Optoelectronics
General Manager

Custom and OEM Options

When your application requirements are not met by our range of catalog products or their variety of user-configurable features, please contact me to discuss how we may serve your custom or OEM needs.

Request a Demo Unit

Explore the benefits of using a Thorlabs high-speed instrument in your setup and under your test conditions with a demo unit. Contact me for details.

Contact Me
MX40B with cover removed
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The MX40B Digital Reference Transmitter

Design, Manufacturing, and Testing Capabilities

Thorlabs' Ultrafast Optoelectronics Team designs, develops, and manufactures high-speed components and instrumentation for a variety of photonics applications having frequency responses up to 70 GHz. Our extensive experience in high-speed photonics is supported by core expertise in RF/microwave design, optics, fiber optics, optomechanical design, and mixed-signal electronics. As a division of Thorlabs, a company with deep vertical integration and a portfolio of over 20,000 products, we are able to provide and support a wide selection of equipment and continually expand our offerings.

Our catalog and custom products include a range of integrated fiber-optic transmitters, modulator drivers and controllers, detectors, receivers, pulsed lasers, variable optical attenuators, and a variety of accessories. Beyond these products, we welcome opportunities to design and produce custom and OEM products that fall within our range of capabilities and expertise. Some of our key capabilities are:

  • Detector and Receiver Design, to 70 GHz
  • Fiber-Optic Transmitter Design, to 70 GHz
  • RF & Microwave Design and Simulation
  • Design of Fiber-Optic and Photonics Sub-Assemblies
  • High-Speed Testing, to 70 GHz
  • Micro-Assembly and Wire Bonding
  • Hermetic Sealing of Microwave Modules
  • Fiber Splicing of Assemblies
  • Custom Laser Engraving
  • Qualification Testing

Overview of Custom and Catalog Products

Our catalog product line includes a range of integrated fiber-optic transmitters, modulator drivers and controllers, detectors, pulsed lasers, and accessories. In addition to these, we offer related items, such as receivers and customized catalog products. The following sections give an overview of our spectrum of custom and catalog products, from fully integrated instruments to component-level modules.

Fiber-Optic Instruments

To meet a range of requirements, our fiber-optic instruments span a variety integration levels. Each complete transmitter includes a tunable laser, a modulator with driver amplifier and bias controller, full control of optical output power, and an intuitive touchscreen interface. The tunable lasers, modulator drivers, and modulator bias controllers are also available separately. These instruments have full remote control capability and can be addressed using serial commands sent from a PC.

  • Fiber-Optic Transmitters, to 70 GHz
  • Linear and Digital Transmitters
  • Electrical-to-Optical Converters, to 70 GHz
  • Modulator Drivers
  • Modulator Bias Controllers
  • C- and L-Band Tunable Lasers

Customization options include internal laser sources, operating wavelength ranges, optical fiber types, and amplifier types.

Fiber-Optic Components

Our component-level, custom and catalog fiber-optic products take advantage of our module design and hermetic sealing capability. Products include detectors with frequency responses up to 50 GHz, and we also specialize in developing fiber-optic receivers, operating up to and beyond 40 GHz, for instrumentation markets. Closely related products include our amplifier modules, which we offer upon request, variable optical attenuators, microwave cables, and cable accessories.

  • Hermetically-Sealed Detectors, to 50 GHz
  • Fiber-Optic Receivers, to 40 GHz
  • Amplifier Modules
  • Electronic Variable Optical Attenuators
  • Microwave Cables and Accessories

Customization options include single mode and multimode optical fiber options, where applicable, and detectors optimized for time or frequency domain operation.

Free-Space Instruments

Our free-space instruments include detectors with frequency responses around 1 GHz and pulsed lasers. Our pulsed lasers generate variable-width, nanosecond-duration pulses, and a range of models with different wavelengths and optical output powers are offered. User-adjustable repetition rates and trigger in/out signals provide additional flexibility, and electronic delay-line products enable experimental synchronization of multiple lasers. We can also adapt our pulsed laser catalog offerings to provide gain-switching capability for the generation of pulses in the 100 ps range.

  • Pulsed Lasers with Fixed 10 ns Pulse Duration
  • Pulsed Lasers with Variable Pulse Width and Repetition Rates
  • Electronic Delay Units to Synchronize NPL Series Pulsed Lasers
  • Amplified Detectors

Customization options for the pulsed lasers include emission wavelength, optical output powers, and sub-nanosecond pulse widths.


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High-Speed Photoreceiver Modules

Key Specsa
Item # Full
Specs
Bandwidth Wavelength Range
(Photodiode Material)
Conversion
Gain
Fiber Pigtail RF
Connector(s)
Package Instrument
Item #b
RX10AF info 40 kHz - 10 GHz 850 - 1650 nm (InGaAs) 450 V/W SMF-28 (SM) Female
2.92 mm
3-Pin -
RX25DF info 500 kHz - 25 GHz 700 - 870 nm (GaAs) 60 - 5000 V/W OM4 (MM) Differential,
Dual GPPO®
16-Pin RXM25DF
RX25AF info 500 kHz - 25 GHz 1250 - 1650 nm (InGaAs) 80 - 8000 V/W SMF-28 (SM) RXM25AF
RX40AF info 300 kHz - 40 GHz 1250 - 1650 nm (InGaAs) 100 - 3650 V/W SMF-28 (SM) RXM40AF
  • For complete specifications, please click the Info icons () above.
  • These OEM modules are also available in packaged instruments.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
RX10AF Support Documentation
RX10AFNEW!Single Mode Photoreceiver Module, 850 - 1650 nm, 40 kHz - 10 GHz, FC/PC
$2,000.00
Today
RX25DF Support Documentation
RX25DFMultimode Photoreceiver Module, 700 - 870 nm, 500 kHz - 25 GHz, FC/PC
$4,738.00
Today
RX25AF Support Documentation
RX25AFSingle Mode Photoreceiver Module, 1250 - 1650 nm, 500 kHz - 25 GHz, FC/PC
$3,708.00
Today
RX40AF Support Documentation
RX40AFSingle Mode Photoreceiver Module, 1250 - 1650 nm, 300 kHz - 40 GHz, FC/PC
$6,489.00
Today
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