Hamamatsu expands its InGaAs lineup for LD and DWDM monitoring Bridgewater, New Jersey – February 13, 2008 – Hamamatsu Corporation has introduced several InGaAs devices for laser diode (LD) and dense wavelength division multiplexing (DWDM) monitoring. InGaAs devices for LD monitoring include front-illuminated and back-illuminated InGaAs PIN photodiodes. The G8941 series (G8941-01/-02/-03) is a sub-mount and front-illuminated type InGaAs PIN photodiode with active areas ranging from 0.3 mm to 1 mm in diameter. Each miniature package is only 2 mm x 2 mm x 1 mm. A back-illuminated InGaAs PIN photodiode, the G9230-01, is eutectic-bonded to a ceramic substrate, eliminating the need for wire bonding. Its active area is 0.3 mm in diameter, and its package dimensions are 2 mm x 2 mm x 1 mm. Hamamatsu also offers a quadrant active area type. Hamamatsu's InGaAs devices specifically designed as channel monitors for DWDM monitoring include a photodiode array (G8909-01) and image sensors (G9201 to G9204 series, G9494 series). An InGaAs photodiode array, the G8909-01 features 40-channel parallel readout and low cross-talk. It has an active area of 0.08 mm in diameter. The image sensors consist of an InGaAs photodiode array with each pixel connected to a charge amplifier array comprised of CMOS transistors, a CDS circuit, an offset compensation circuit, a shift register, and a timing generator. These image sensors offer one video line (256 channels) or two video lines (512 channels), wide dynamic range, low noise, low dark current, and low cross-talk. The DIP (dual inline package) model is operated at room temperature while the metal model features one-stage TE-cooling. For more information about InGaAs products for LD and DWDM monitoring, including pricing and delivery time, please call Hamamatsu Corporation at 1-800-524-0504 or visit the company's website, http://sales.hamamatsu.com. About Hamamatsu Corporation Hamamatsu Corporation is the North American subsidiary of Hamamatsu Photonics K.K. (Japan), a leading manufacturer of devices for the generation and measurement of infrared, visible, and ultraviolet light. These devices include photodiodes, photomultiplier tubes, scientific light sources, infrared detectors, photoconductive cells, and image sensors. The parent company is dedicated to the advancement of photonics through extensive research. This corporate philosophy results in state-of-the-art products which are used throughout the world in scientific, industrial, and commercial applications. Media contact George E. Marshall Hamamatsu Corporation 360 Foothill Road, Box 6910, Bridgewater, New Jersey 08807-0910 Phone: (908) 231-0960 / Fax: (908) 231-1218 Email: gmarshall@hamamatsu.com Information furnished by Hamamatsu Corporation is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice.
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