Cladding mode coupling in long-period gratings formed in photonic crystal fibers
β Scribed by Kwang N. Park; Turan Erdogan; Kyung S. Lee
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 274 KB
- Volume
- 266
- Category
- Article
- ISSN
- 0030-4018
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## Abstract We experimentally investigate the cladding mode coupling loss of fiber Bragg gratings written in holeβassisted fibers. The cladding mode coupling loss is remarkably suppressed due to air holes inside of the silica cladding. The reduction of cladding mode coupling loss of less than βΌ0.33
## Abstract A longβperiod grating (LPG) written in the cladding of an optical fiber is demonstrated.The optical fiber is specially designed and manufactured, which cladding is photosensitive, and core is not~.~ The cladding LPG is written in by illuminating a cladding photosensitive fiber with an U