High temperature, colourless operation of a reflective semiconductor optical amplifier for 2.5 Gbit/s upstream transmission in a WDM-PON

Recent progresses in RSOA-based WDM PON

“…An important factor affecting this problem is the temperature dependence of these light sources, as their un-cooled operation is indispensable. Previously, the operating temperature ranges for various types of colorless light sources such as the ASE-injected FP laser and the RSOA have been evaluated experimentally [6]- [8]. For example, the un-cooled operation of the RSOA has been demonstrated in a 16-channel WDM PON in the temperature range of 60 ºC [7].…”

Enhanced Amplitude Noise Tolerance of a Self-Seeded RSOA Laser Using Balanced Detection

“…Furthermore, these sources provide a wide optical bandwidth (more than 60 nm). The RSOA, which has been shown to be compatible with uncooled operation [6], is used both for amplification and modulation. Many demonstrations of RSOA self-seeded cavities have been published so far, with bit rates up to 10 Gbit/s in the telecommunication C-band and transmission distances up to 90 km in the O-band [1][2][3].…”

Compact, very-low-electric-power-consumption (0.84 W) 1.3-µm optical amplifier module using AIGalnAs MQW-SOA

“…This scheme has already been demonstrated in transmitters and receivers, so-called TOSA and ROSA. As for SOAs, high temperature operations of 1.55-m R-SOAs 3,4 and polarization sensitive QD-SOAs 5,6 have been reported. As far as we know, however, a compact polarization insensitive 1.3-m SOA module equipped with a chip operated in high temperature has not been investigated.…”