High performance polarisation independent reflective semiconductor optical amplifiers in the S, C, and L bands

Kelly, A.E. and Michie, Walter and Zhong, Wen-de and Karagiannopoulos, S. and Madden, W I and Tombling, C. and Andonovic, I. (2010) High performance polarisation independent reflective semiconductor optical amplifiers in the S, C, and L bands. IEEE Journal on Selected Areas in Communications, 28 (6). pp. 943-948. ISSN 0733-8716

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Abstract

Polarisation independent strained bulk RSOAs have been fabricated in the S-band for the first time. In system tests at 1.25 Gbit/s, the devices have been shown to operate over >60 nm with large return Path Loss Capabilities (PLC). The devices are capable of providing >25 dB PLC over a 60 nm span and hence the combination of two RSOAs provides PLC of >25 dB over a wavelength interval of >120 nm (1470 nm to 1590 nm). The temperature performance of the C/L band device has also been studied and a PLC of >20 dB has been shown at 60°C.