Sample Files

Reference T. Erdogan, ‘Fiber Grating Spectra,’ J. Lightwave Technol., vol.15, No.8, (1997), pp.1277-1294. Description The example demonstrates the effect of apodization on the optical properties of a fiber grating. A chirpless, sinusoidal Bragg grating has a user-defined average refractive index and apodization. The average index is modulated by the Gaussian function: Index_Mod*exp(-ln2*(2*(x-Length/2)/Length)^2) The fiber Bragg grating…

Reference T. Erdogan, ‘Fiber Grating Spectra,’ J. Lightwave Technol., vol.15, No.8, pp.1277- 1294, (1997). Description The example demonstrates a sampled grating exhibiting periodic superstructure. The superstructure is a collection of 99 identical gratings and phase shift blocks. The gratings are uniform and have a uniform average index. The main result is the multi-peak, periodic superstructure…

Reference C.-X. Shi and T. Okoshi, ‘Mode conversion based on the periodic coupling by a reflective fiber grating,’ Opt. Lett., vol.17, No.23, pp.1655-1657, (1992). Description The example demonstrates the mode conversion between the LP01 and LP02 mode in a fiber with Bragg grating. The fiber has four LP core modes. In the example, only three…

Reference R. Zengerle and O. Leminger, ‘Phase-shifted Bragg-grating filters with improved transmission characteristics,’ J. Lightwave Technol., vol. 13, No.12, (1995), pp. 2354- 2358. Description The example demonstrates an InP/InGaAsP planar waveguide filter. The design is based on five gratings and four phase shifts. The uniform, rectangular-shaped gratings are placed on the top of the waveguide.…

Reference A. M. Vengsarkar et al., ‘Long-period fiber-grating-based gain equalizers,’ Opt. Lett., vol.21, No.5, (1996), pp.336-338. Description The example demonstrates a fiber grating filter used to equalize the gain of a fiber amplifier. The LP01 fiber core mode is coupled to the LP08 cladding mode. A twograting structure is present in the fiber. The gratings…

Reference L. R. Chen et. al., ‘Ultrashort pulse reflection from fiber gratings: A numerical investigation,’ J. Lightwave Technol., vol.15, No.8, (1997), pp.1505-1512. Description The example demonstrates a transform-limited Gaussian pulse reflected from uniform fiber gratings. The gratings have different index modulation values. You can change the grating modulation index and compare the calculated results with…

Reference L. R. Chen et. al., ‘Ultrashort pulse reflection from fiber gratings: A numerical investigation,’ J. Lightwave Technol., vol.15, No.8, (1997), pp.1505-1512. Description The example demonstrates a transform-limited Gaussian pulse reflected from apodized fiber gratings. The gratings are apodized by a Gaussian function and the same index modulation value of 4.356e-4. You can change the…

Reference L. A. Everall et al, ‘Multiple-passband in-fiber Moiré resonators fabrication using nearfield holography with a chirped phase mask,’ Proc. of the 11th Int. Conf. on Integrated Optics and Optical Fiber Communications and 23rd European Conference on Optical Communications, IOOC/ECOC ’97, Edinburgh, 22-25 September 1997, vol.2, pp.41- 44. Description The example demonstrates how to simulate…