Enhanced power transfer and mode coupling in spun twin-core optical fibers
- Program in Applied Mathematics, Princeton University, Princeton, New Jersey 08544 (United States)
- Courant Institute of Mathematical Sciences, New York University, New York, New York 10012 (United States)
In a twin-core optical fiber a propagating light pulse periodically transfers power between its two cores. Experiments by Tjugiarto {ital et} {ital al}. [Opt. Lett. {bold 17,} 1058 (1992)] have demonstrated that this coupling length is considerably reduced when the fiber is also spun. A coupled-mode analysis reveals a pitch resonance that couples a cladding mode with the circularly polarized core mode whose handedness matches that of the helical twist of the cores. This resonance mechanism explains the observation of enhanced coupling and cladding-mode cross coupling. {copyright} {ital 1996 Optical Society of America.}
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG02-88ER25053
- OSTI ID:
- 285903
- Journal Information:
- Optics Letters, Journal Name: Optics Letters Journal Issue: 12 Vol. 21; ISSN OPLEDP; ISSN 0146-9592
- Country of Publication:
- United States
- Language:
- English
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