Ultra-broadband amplified spontaneous emission source by using heterogeneous optical amplifier

C. H. Yeh*, Chi Wai Chow, J. H. Chen, S. S. Lu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In this work, we propose and experimentally investigate an ultra-broadband amplified spontaneous emission (ASE) light source with 113.8 nm bandwidth (1446.2 to 1560.0 nm) by using a cascaded two- stage optical amplifier, which is consisted of semiconductor optical amplifier (SOA, 1st stage) and erbium- doped fiber amplifier (EDFA, 2nd stage), when the output intensity is above -35 dBm/0.01 nm. And, the EDFA only uses a 3 m long erbium-doped fiber (EDF) with a 27 mW pumping power and SOA is driven at 200 mA bias current. Moreover, the proposed amplifier also can provide a broadband gain amplification of 114 nm in the wavelengths of 1464.0 and 1578.0 nm with the noise figure distribution of 6.8 to 8.1 dB.

Original languageEnglish
Pages (from-to)1700-1703
Number of pages4
JournalLaser Physics
Issue number11
StatePublished - 1 Nov 2012

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