Applied Optoelectronics introduces new CWDM lasers and a photodetector product line

February 20, 2006

3 Min Read

SUGAR LAND, Texas -- Applied Optoelectronics, Inc., a leading manufacturer of laser diodes, photodetectors, and optical modules for fiber optic communication systems, is pleased to announce the addition of new wavelengths to its industry-leading line of lasers for Coarse Wavelength Division Multiplexing (CWDM).

CWDM is an emerging standard for multiplying the bandwidth that can be transmitted on an optical fiber. The standard is a low-cost alternative to expensive Dense Wavelength Division Multiplexing (DWDM), offering a route to increased bandwidth without expensive DWDM components or additional fiber installation.

AOI’s 18 channel DFB-1xxx-C5-2-A-xx-x-x-xx series laser diodes have been designed specifically for analog applications, especially cable television return-path. They feature wavelengths on the CWDM grid (defined in ITU-T G.694.2), low distortion characteristics, low RIN noise, and high side mode suppression. Their uncooled, hermetically sealed, coaxial fiber-pigtailed packages are a cost-effective means of providing a highly linear light source for intermediate-reach and long-reach analog transmission applications.

Selected wavelengths are available now, with the full complement of 18-channels available by June 2006.

“We continue to expand our CWDM portfolio,” commented Dr. Stefan Murry, VP of Marketing and Sales. “The additional wavelengths will provide our customers with the complete array of ITU-grid CWDM wavelengths. This, in turn, enables carriers to maximize the bandwidth on available fiber and enjoy the flexibility of having available channels throughout both the 1310-nm and 1550-nm communications windows.”

In a separate release:

SUGAR LAND, Texas -- Applied Optoelectronics, Inc., a leadingmanufacturer of laser diodes, photodetectors, and optical modules for fiber opticcommunication systems, is pleased to announce the availability of transmitter optical subassemblies(TOSAs) for high-speed transmitters for digital and coarse wave divisionmultiplexing (CWDM) applications.

Key features of the laser include:

  • High output power

  • Hermetically-sealed laser

  • Uncooled laser up to 4.0 Gbps

  • Low-noise light source

  • 5.6-mm TO-style package (3.8-mm available soon)

  • Package styles: SC and LC

  • Laser types: Distributed Feedback (DFB) and Fabry-Perot (FP)

  • Optional extended temperature range from -40ºC to +85ºC



Samples are available now. Volume shipments will begin in March 2006 with a capacityof a 4000 pieces per month.

“AOI’s TOSA and ROSA products represent the best value in the industry for the highperformanceoptical products that are in demand by transceiver manufacturers,”comments Dr. Stefan Murry, VP of Marketing and Sales. “AOI’s record of reliabilityand quick delivery provides a compelling reason for customers to look to us first whenselecting a vendor for their new transceiver designs.”

In an additional release:

SUGAR LAND, Texas -- Applied Optoelectronics, Inc., a leadingmanufacturer of laser diodes, photodetectors, and optical modules for fiber opticcommunication systems, is pleased to introduce a full photodetector product line forapplications including Cable TV (CATV) forward and return path, Passive OpticalNetworks (PON), digital transmission systems employing Quadrature AmplitudeModulation (QAM) or Quadrature Phase-Shift Keying (QPSK), Erbium Doped FiberAmplifiers (EDFA), and Fiber-to-the-curb (FTTC)/Fiber-to-the-home (FTTH) networks.

Key features of the photodetectors include:

  • Low capacitance

  • High linearity

  • Frequency Response up to 3000 MHz (PD1000 series up to 1000 MHz)

  • Wide operating temperature

  • High responsivity

  • Package Styles: Pigtailed, Receptacle, Metal Receptacle



This product line is currently in production and has a manufacturing capacity of 10,000devices per month.

“As fiber continues to penetrate deeper into modern networks, there is an emerging needfor photodiodes that combine small physical size with excellent linearity and highfrequencyperformance,” comments Dr. Fred Chang, VP of Manufactuirng at AOI. “Tomeet this need, AOI has developed a unique manufacturing technology to enable theproduction of photodiodes with integrated standard angle-polished optical connectors.”

Applied Optoelectronics Inc. (AOI)

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