Optical bistability in reflective fiber gratings

Optical bistability in a nonlinearly reflective fiber grating through the mode coupling between the LP/sub 01/ and counter propagation LP/sub 02/ modes (i,e., the reflective LP/sub 01//spl rlhar2/LP/sub 02/ mode converter) is investigated by using the coupled-mode theory. Both the transmissive and the reflective properties of this nonlinear device are analyzed, which show that the output-versus-input relation exhibits the optical bistability. The switching power and the bistable hysteresis performances are also discussed. In addition, the comparison between the nonlinearly reflective mode converter (LP/sub 01//spl rlhar2/LP/sub 02/) and the nonlinear fiber Bragg grating reflector (i,e., the LP/sub 01/ and counter-propagation LP/sub 01/ modes) is also presented. It is shown that the former has much lower switching power than the latter. >

[1]  J. D. Begin,et al.  An analysis of a planar optical directional coupler with a lossless Kerr-like coupling medium , 1990 .

[2]  Gerald Meltz,et al.  Bragg grating formation and germanosilicate fiber photosensitivity , 1991, Other Conferences.

[3]  George I. Stegeman,et al.  All-optical waveguide switching , 1990 .

[4]  J. Oudar,et al.  Monolithic GaAs/AlAs optical bistable étalons with improved switching characteristics , 1988 .

[5]  Jian-Jun He,et al.  Optical bistability in semiconductor periodic structures , 1991 .

[6]  K. Okamoto,et al.  Chromatic dispersion characteristics of fibers with optical Kerr-effect nonlinearity , 1989 .

[7]  G. Meltz,et al.  Formation of Bragg gratings in optical fibers by a transverse holographic method. , 1989, Optics letters.

[8]  Sophie LaRochelle,et al.  All-optical switching of grating transmission using cross-phase modulation in optical fibres , 1990 .

[9]  C. D. Hussey,et al.  Variational approximations for higher-order modes of weakly-guiding fibres , 1984 .

[10]  K. Hill,et al.  Photosensitivity in optical fiber waveguides: Application to reflection filter fabrication , 1978 .

[11]  Mode conversion based on the periodic coupling by a reflective fiber grating. , 1992, Optics letters.

[12]  Marc Douay,et al.  Formation of moire grating in core of germanosilicate fibre by transverse holographic double exposure method , 1991 .

[13]  F. Morier-Genoud,et al.  All‐optical bistable switching and signal regeneration in a semiconductor layered distributed‐feedback/Fabry–Perot structure , 1993 .

[14]  Govind P. Agrawal,et al.  Nonlinear Fiber Optics , 1989 .

[15]  Kenneth O. Hill,et al.  Efficient mode conversion in telecommunication fibre using externally written gratings , 1990 .

[16]  Kenneth O. Hill,et al.  Efficient, narrowband LP/sub 01/ implies/implied by LP/sub 02/ mode convertors fabricated in photosensitive fibre: spectral response , 1991 .

[17]  B. Kim,et al.  All-optical intermodal switch using periodic coupling in a two-mode waveguide. , 1989, Optics letters.

[18]  S. Lacroix,et al.  Structural considerations for bimodal nonlinear optical switching , 1990 .

[19]  Elsa Garmire,et al.  Theory of bistability in nonlinear distributed feedback structures (A) , 1979 .

[20]  D. Gloge.  Weakly guiding fibers. , 1971, Applied optics.

[21]  T. Okoshi,et al.  Analysis of a fiber-optic LP(01) ? LP(02) mode converter. , 1992, Optics letters.

[22]  C. Pask,et al.  Nonlinear effects in elliptical-core few-mode optical fibers , 1992 .

[23]  M. Čada,et al.  Combined distributed feedback and Fabry–Perot structures with a phase‐matching layer for optical bistable devices , 1992 .

[24]  Optical bistability in an NLDFB device showing absorption: comparison of feedback efficiencies for different grating profiles and study of the behavior of aperiodic and nonperfect grating profiles , 1990 .

[25]  H. Gibbs,et al.  Optical nonlinearity, bistability, and signal processing in semiconductors , 1985 .