Latest SCW 1731F-D40R DFB Laser Diode Module is Suitable for OSA/OTDR Tasks

Press Release Summary:

  • Housed in 14-pin DIL package and optically coupled to an SMF fiber pigtail
  • Designed for optical test equipment application in which high-peak-pulsed optical power is needed
  • Features a thermoelectric cooler and an electrically-isolated temperature-sensing thermistor

Original Press Release:

OSI Laser Diode Launches Wavelength-Stabilized 1650 nm Pulsed DFB Laser Diode Module

• The company will feature the SCW 1731F-D40R proprietary laser diode module at LASER World of PHOTONICS, June 24 - 27, 2019, in Munich, Germany, in Hall B2, Booth 139.

EDISON, New Jersey – May 23, 2019 – OSI Laser Diode (LDI), a leading global supplier of advanced optoelectronics components, introduces a 1650 nm AI RWG DFB laser diode module. The SCW 1731F-D40R is specially designed for optical test equipment applications where high-peak-pulsed optical power is required.

The laser diode module’s unique proprietary design offers a stabilized wavelength that is unaffected by operational pulse width, making it ideal for OSA/OTDR tasks. The module also features a broader spectrum than is available in traditional DFBs and it exhibits less noise in OTDR and other similar applications.

The new product, housed in a 14-pin DIL package, is RoHS compliant. It is optically coupled to an SMF fiber pigtail and includes a thermoelectric cooler and an electrically-isolated temperature-sensing thermistor.

The SCW 1731F-D40R is available for immediate delivery. For more information and to download the data sheet, please visit:

The product will be showcased in Hall B2, Booth 139 at the 24th Annual LASER World of PHOTONICS in Munich, Germany, June 24 - 27, 2019. 

For additional information about OSI LDI’s full line of optoelectronic components, standard products, or custom and OEM solutions, please visit:


OSI Laser Diode, Inc. (LDI) -, offers a comprehensive portfolio of optoelectronic devices, leveraged by extensive opto-assembly capabilities and experience. Our technical support team combines with our leading innovation, consistent quality, excellence in service, and timely delivery to maintain LDI’s reputation as a global leader in the laser diode and photonics markets.

The company provides high-quality, high-reliability products and assemblies that serve a variety of markets including Test/Measurement, Defense/Aerospace, Commercial/Industrial, and Medical. Products include OTDR Lasers, High Power Pulsed & CW Lasers, PINFET’s & PINAMPS, Telecom & Industrial Lasers, and more.

OSI Laser Diode, Inc.

4 Olsen Avenue

Edison, New Jersey 08820

Contact: Peggy Scarillo, Sales Manager

Phone: 732-516-6520

Fax: 732-906-1559


Web Site:

Media Contact: Marlene Moore

Smith Miller Moore


Phone: 818-708-1704

Download Spec Sheet

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