Multichannel laser diode driver array and its application

Qingsheng Tan; Jan Vandewege

doi:10.1117/12.252010

20 September 1996 Multichannel laser diode driver array and its application

Qingsheng Tan, Jan Vandewege

Proceedings Volume 2893, Fiber Optic Components and Optical Communication; (1996) https://doi.org/10.1117/12.252010
Event: Photonics China '96, 1996, Beijing, China

Abstract

This paper presents a four-channel, monolithically integrated laser diode driver array and its application in a multi-channel optical transmission link. The driver array is developed in the Tektronix SHPi bipolar process based on a P-type silicon substrate, to achieve a low fabrication cost and excellent performance. The combined features of the low driving threshold, flexible bias current and modulation current settings and low power consumption make the device suitable for parallel optical links. The developed driver array has an ECL compatible interface and is able to deliver a bias current of 0 - 20 mA and a modulation current up to 10 mA per channel. This device has been employed in a multi- channel transmitter module designed for optical interconnections. Two driver chips and an eight-element common-cathode laser diode array at 960 nm are mounted on a ceramic substrate on which a metal pattern is defined by thin film technology. The optical interface of this surface- mounting-type electro-optical module is a slanted polished fiber array (62.5/125 micrometers ) of eight elements. Measurements have shown a bit-rate up to 1.25 Gb/s per channel. This paper discusses the design approach and realization of the driver array and module, as well as their application.

Citation Download Citation

Qingsheng Tan and Jan Vandewege "Multichannel laser diode driver array and its application", Proc. SPIE 2893, Fiber Optic Components and Optical Communication, (20 September 1996); https://doi.org/10.1117/12.252010

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