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| Content Provider | IEEE Xplore Digital Library | 
|---|---|
| Author | Harun, S.W. Tamchek, N. Ahmad, H. | 
| Copyright Year | 2003 | 
| Description | Author affiliation: Dept. of Phys., Malaya Univ., Kuala Lumpur, Malaysia (Harun, S.W.; Tamchek, N.; Ahmad, H.) | 
| Abstract | Gain clamping in dual-stage long-wavelength (L-band) erbium-doped fiber amplifier (EDFA) is demonstrated. It uses two circulators and a broadband fiber Bragg grating (FBG) to route a wasted backward conventional band (C-band) amplified spontaneous emission (ASE) from the second stage and launch it back into the input end of the first stage. The amplifier gain is clamped at 16.5 dB with variation less than 0.2 dB and the dynamic range up to -7.5 dBm for the VOA loss of 4 dB. The clamped gain level also can be controlled from 15.0 to 22.9 dB by increasing the VOA loss from 0 to 32 dB without much variation in noise figure. | 
| Starting Page | 43 | 
| Ending Page | 44 | 
| File Size | 338610 | 
| Page Count | 2 | 
| File Format | |
| ISBN | 0780381734 | 
| DOI | 10.1109/SCORED.2003.1459660 | 
| Language | English | 
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) | 
| Publisher Date | 2003-08-25 | 
| Publisher Place | Malaysia | 
| Access Restriction | Subscribed | 
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) | 
| Subject Keyword | Bragg gratings Spontaneous emission Broadband amplifiers Circulators Erbium-doped fiber amplifier Dynamic range Fiber gratings Recycling Clamps L-band | 
| Content Type | Text | 
| Resource Type | Article | 
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