Cascaded long-period gratings with nanostructured coatings
β Scribed by James, Stephen W.; Ishaq, Imran; Ashwell, Geoffrey J.; Tatam, Ralph P.
- Book ID
- 115427731
- Publisher
- Optical Society of America
- Year
- 2005
- Tongue
- English
- Weight
- 174 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0146-9592
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π SIMILAR VOLUMES
## A simple and efficient variable optical attenuator (VOA) is achieved by using microbend gratings on single-mode fiber (SMF). The flatness of the attenuator is maintained for 100 nm along the CΟ©L band spectrum. Controlling the pressure will vary the attenuation depth of the device.
## Abstract We propose cascaded longβperiod fiber gratings (LPFGs), whose synthesized rejection band alters in bandwidth and loss according to ambient temperature. By using an edgeβemitting lightβemitting diode as an input light source, temperature dependence of the optical power through the cascad