Abstract
Post processing of photonic crystal fibres with a CO/sub 2/ laser is a very powerful and versatile method for fabricating miniature compact fibre devices including structural long period gratings and rocking filters. A compact Mach-Zehnder interferometer was made from two consecutive structural rocking filters in a highly birefringent photonic crystal fibre. Each rocking filter had 6 complete twist periods of 0.6 mm giving a total length of just 3.6 mm. For a separation distance between the two rocking filters of 125 mm, the fringe separation (bright-dark) of the interferometer is 2.5 nm. The polarization couplers (rocking filters) are highly compact and they are expected to be temperature stable.
| Original language | English |
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| Pages | 176-177 Vol.1 |
| Publication status | Published - 2003 |
| Event | Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on - Duration: 1 Jan 2003 → … |
Conference
| Conference | Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on |
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| Period | 1/01/03 → … |
Keywords
- miniature compact fibre devices
- polarization couplers
- photonic crystal fibres
- structural rocking filters
- laser materials processing
- 3.6 mm
- CO/sub 2/ laser beam
- photonic crystals
- gas lasers
- optical fibre fabrication
- Mach-Zehnder interferometers
- Mach-Zehnder interferometer