Gain-clamped Raman fiber amplifier in a counter-lasing ring-cavity using a pair of circulators

✍ Scribed by A. Ahmad; M. I. Md Ali; A. K. Zamzuri; R. Mohamad; M. A. Mahdi

• Book ID: 102515579
• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 128 KB
• Volume: 48
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.21455

✦ Synopsis

Abstract

An all‐optical gain‐clamped Raman fiber amplifier (RFA) based on the ring‐lasing technique using a pair of circulators is demonstrated experimentally. The RFA is powered using a pair of 1465‐nm pump laser diodes, which provide a peak gain at around 1565 nm. The analyses of the gain and the noise figure are carried out using different lasing wavelengths between 1550 and 1565 nm. The gain and noise figure variations are 0.4 and 0.5 dB in the gain‐clamping range, respectively. We observe a strong influence of pump‐signal relative‐intensity noise transfer, which results in a noise‐figure penalty at the signal. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 721–724, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21455