Tilted fiber phase gratings

@article{Erdogan1996TiltedFP,
  title={Tilted fiber phase gratings},
  author={Turan Erdogan and John E. Sipe},
  journal={Journal of The Optical Society of America A-optics Image Science and Vision},
  year={1996},
  volume={13},
  pages={296-313}
}
  • T. Erdogan, J. Sipe
  • Published 1 February 1996
  • Physics
  • Journal of The Optical Society of America A-optics Image Science and Vision
A detailed theoretical treatment is presented of bound-mode to bound-mode Bragg reflection and bound-mode to radiation-mode coupling loss in a tilted optical-fiber phase grating. Numerical predictions of the effects of grating tilt on the spectral characteristics of such a grating are calculated. These predictions are compared with experimentally measured spectra of strong gratings written by ultraviolet irradiation of deuterium-sensitized fiber with grating tilt angles ranging from 0° to 15… 

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...

References

SHOWING 1-10 OF 17 REFERENCES

Formation of Bragg gratings in optical fibers by a transverse holographic method.

Bragg gratings have been produced in germanosilicate optical fibers by exposing the core, through the side of the cladding, to a coherent UV two-beam interference pattern with a wavelength selected

Optical properties of photosensitive fiber phase gratings

The authors measure and calculate the optical properties of strong ( delta n/n approximately 10/sup -3/) in-core optical fiber phase gratings written by the UV laser sidewriting technique. A

In-fiber Bragg grating tap

In many network and sensor applications, small amounts of light need to be coupled out at many points from a transmission bus fiber. In-line devices with some wavelength selectivity are particularly

Efficient mode conversion in telecommunication fibre using externally written gratings

A novel approach to grating writing in optical fibres is described. This method involves writing the grating point by point through the side of the fibre using a UV laser source. Efficient mode

Theory of Optical Waveguides

Optical waveguides, also known as “dielectric” waveguides, are the structures that are used to confine and guide the light in the guided-wave devices and circuits of integrated optics. This chapter

PROPAGATION THROUGH NONUNIFORM GRATING STRUCTURES

We consider linear propagation through shallow, nonuniform gratings, such as those written in the core of photosensitive optical fibers. Though, of course, the coupled-mode equations for such

Weakly guiding fibers.

TLDR
Simple formulas and functions for the fiber parameters are presented as a help for practical design work that considers the propagation constant, mode delay, the cladding field depth, and the power distribution in the fiber cross section.

Wideband gain flattened erbium fibre amplifier using a photosensitive fibre blazed grating

An erbium fibre amplifier with a highly flattened gain spectrum is demonstrated for the first time using an all fibre photosensitive Bragg grating. An ASE spectrum flattened to within ±0.5 dB over a

Coupled‐Wave Theory of Distributed Feedback Lasers

An analysis of laser action in a periodic structure is presented. A model of two counter‐running waves coupled by backward Bragg scattering is used. The resonant frequencies and threshold criteria