## Abstract A new design of an all‐optical gain‐clamped erbium‐doped fiber amplifier is demonstrated. The amplifier is based on the conventional ring cavity, where the gain is clamped at 21.84 dB via optical feedback using a single fiber Bragg grating for an input signal power as high as −8 dBm. ©
A gain-clamped S-band erbium-doped fiber amplifier using fiber Bragg grating
✍ Scribed by Chien-Hung Yeh; Ming-Ching Lin; Sien Chi
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 175 KB
- Volume
- 261
- Category
- Article
- ISSN
- 0030-4018
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We demonstrate a dual-stage gain-clamped erbium-doped fiber amplifier. The first-stage amplifier consists of a short length of erbium-doped fiber to produce low noise figures. The second-stage is constructed from a counter-propagating ring-laser, in which the signals and the lasing wavelength propag
A short wavelength band erbium-doped fiber laser (S-band EDFL) is demonstrated utilizing a fiber Bragg grating (FBG) in unidirectional ring configuration. The amplification in S-band is achieved using an erbium-doped fiber with depressed cladding, which suppressed gains at longer wavelength. The las
## Abstract Gain clamping in a long‐wavelength‐band erbium‐doped fiber amplifier (L‐band EDFA) using a C/L‐band WDM coupler is demonstrated. The gain for the amplifier is clamped at 15.5 dB with a gain variation of less than 0.2 dB from input signal power ranging from −40 to −14 dBm with almost neg
## Abstract A gain clamping technique for the long‐wavelength‐band erbium‐doped fiber amplifier (L‐band EDFA) is presented. It uses two circulators and a fiber Bragg grating (FBG) to route a backward amplified spontaneous emission (ASE) from a second‐stage amplifier and launch it back into the firs
## Abstract We present an L‐band all‐optical gain‐clamped erbium‐doped fiber amplifier with a fiber‐loop mirror as the ASE reflector. By using the combination of a C/L‐band wavelength division multiplexer (WDM) and fiber‐loop mirror, the backward C‐band amplified spontaneous emission (ASE) is refle