We report an integrated all-fiber variable optical attenuator (VOA) for dynamic control of a device by achieving optimized taper and axial compression of an index-guiding holey fiber. We experimentally demonstrate a VOA device with dynamic ranges of 18dB over the spectral range from 1450 to 1650nm and a low insertion loss of 0.5dB.
Bibliographical noteFunding Information:
This work was supported by a Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MOST) (No. R01-2006-000-11088-0).
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics