Abstract: According to embodiments of the present disclosure, an optical device for dispersion compensation is provided. The optical device may include a channel waveguide and two sidewalls coupled to at least a portion of the channel waveguide. The two sidewalls may be respectively arranged at opposing sides of the channel waveguide along a longitudinal axis of the channel waveguide. Each of the two sidewalls may include a plurality of optical elements arranged along the channel waveguide of the waveguide, and the plurality of optical elements may be configured to interact with light propagating in the waveguide so as to compensate dispersion of the light by transmitting the light in a regime close to a stopband of the plurality of optical elements defined by a period of the plurality of optical elements.

Abstract: An on-chip bidirectional pulse compressor for temporal compression and spectral compression. The on-chip bidirectional pulse compressor including a substrate; a nonlinear waveguide disposed on the substrate, wherein the nonlinear waveguide is dimensioned to induce a nonlinear response within a predetermined operating wavelength ranges and is made of a material free of two-photon absorption at the predetermined operating wavelength ranges; and an anomalous dispersive component disposed on the substrate. The nonlinear waveguide and the anomalous dispersive component are interconnected for bidirectional pulse propagation, wherein propagating through the nonlinear waveguide followed by the anomalous dispersive component causes temporal compression, and propagating through the anomalous dispersive component followed by the nonlinear waveguide causes spectral compression. Various embodiments also include an optical device including the on-chip bidirectional pulse compressor.

Abstract: According to various embodiments, a photonic device and method for generating supercontinuum pulses are provided. The photonic device includes two stages, a nonlinear Bragg grating, and a nonlinear waveguide, which may be formed from CMOS-compatible ultra-rich silicon nitride using a monolithically integrated design.

Abstract: According to various embodiments, there is provided an optical device including: a waveguide configured to propagate an electromagnetic wave, the waveguide including a first grating and further including a second grating; a first further waveguide including a first further grating, the first further waveguide having a first width, wherein the first further grating is coupled to the first grating to form a first pair of coupled gratings, wherein a grating period of the first further grating is at least substantially equal to a grating period of the first grating; a second further waveguide including a second further grating, the second further waveguide having a second width, wherein the second further grating is coupled to the second grating to form a second pair of coupled gratings, wherein a grating period of the second further grating is at least substantially equal to a grating period of the second grating.

Abstract: According to various embodiments, there is provided an optical device including: a waveguide configured to propagate an electromagnetic wave, the waveguide including a first grating and further including a second grating; a first further waveguide including a first further grating, the first further waveguide having a first width, wherein the first further grating is coupled to the first grating to form a first pair of coupled gratings, wherein a grating period of the first further grating is at least substantially equal to a grating period of the first grating; a second further waveguide including a second further grating, the second further waveguide having a second width, wherein the second further grating is coupled to the second grating to form a second pair of coupled gratings, wherein a grating period of the second further grating is at least substantially equal to a grating period of the second grating.

Abstract: According to embodiments of the present invention, an optical device is provided. The optical device includes a channel waveguide, and a plurality of optical elements arranged along at least a portion of the channel waveguide to interact with light propagating in the channel waveguide, wherein a period of the plurality of optical elements changes nonlinearly along the portion of the channel waveguide. According to further embodiments of the present invention, a method for forming an optical device is also provided.

Abstract: According to embodiments of the present invention, an optical device is provided. The optical device includes a channel waveguide, and a plurality of optical elements arranged along at least a portion of the channel waveguide to interact with light propagating in the channel waveguide, wherein a period of the plurality of optical elements changes nonlinearly along the portion of the channel waveguide. According to further embodiments of the present invention, a method for forming an optical device is also provided.