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2 May 1994 Wide-bandwidth 1.3-um integrated lossless tap and optical preamplifier
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Abstract
A high-sensitivity, wide-bandwidth, optical preamplifier is demonstrated in the form of a monolithically integrated semiconductor optical amplifier and waveguide photodetector. By fabricating the same device with a shorter photodetector section, part of the signal is passed through to an output fiber, forming an optical tap. Amplifier gains are sufficient to overcome the fiber-coupling and detector loss, and exhibit zero-insertion-loss operation. A lossless tap with an electrical bandwidth of 7 GHz, a responsivity of 26 A/W, and a fiber-to-fiber gain of 3 dB is shown to have a receiver sensitivity of -22 dBm at 3 Gb/s.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John Schlafer, William C. Rideout, Mohammed I. Abdalla, Elliot G. Eichen, W. Russell, W. Niland, Edmund Meland, William Powazinik, and Joanne S. LaCourse "Wide-bandwidth 1.3-um integrated lossless tap and optical preamplifier", Proc. SPIE 2149, Technologies for Optical Fiber Communications, (2 May 1994); https://doi.org/10.1117/12.175288
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