Abstract: A cooking system positionable on a support surface includes a housing having an internal cooking compartment and an opening formed in the housing for accessing said internal cooking compartment. At least one heating element is provided for heating said internal cooking compartment. The heating element is operable to heat the internal cooking compartment while the opening is at least partially exposed to an ambient environment to allow fluid transfer between the ambient environment and the internal cooking compartment. An output from said at least one heating element is variable across said internal cooking compartment during operation of the system.

Abstract: A cooking system positionable on a support surface includes a housing having an internal cooking compartment and an opening formed in the housing for accessing said internal cooking compartment. At least one heating element is provided for heating said internal cooking compartment. The heating element is operable to heat the internal cooking compartment while the opening is at least partially exposed to an ambient environment to allow fluid transfer between the ambient environment and the internal cooking compartment. An output from said at least one heating element is variable across said internal cooking compartment during operation of the system.

Abstract: A cooking system positionable on a support surface includes a housing having an internal cooking compartment and an opening formed in the housing for accessing said internal cooking compartment. At least one heating element is provided for heating said internal cooking compartment. The heating element is operable to heat the internal cooking compartment while the opening is at least partially exposed to an ambient environment to allow fluid transfer between the ambient environment and the internal cooking compartment. An output from said at least one heating element is variable across said internal cooking compartment during operation of the system.

Abstract: A cooking system positionable on a support surface includes a housing having an internal cooking compartment and an opening formed in the housing for accessing said internal cooking compartment. At least one heating element is provided for heating said internal cooking compartment. The heating element is operable to heat the internal cooking compartment while the opening is at least partially exposed to an ambient environment to allow fluid transfer between the ambient environment and the internal cooking compartment. An output from said at least one heating element is variable across said internal cooking compartment during operation of the system.

Abstract: A cooking system positionable on a support surface includes a housing having an internal cooking compartment and an opening formed in said housing for accessing said internal cooking compartment. The housing is positionable about the support surface in both a first orientation and a second, distinct orientation. At least one heating element is associated with said internal cooking compartment. The at least one heating element is operable to heat said internal cooking compartment in both said first orientation and said second orientation.

Abstract: A cooking system for cooking food includes a housing defining a hollow chamber, a food container positionable in said hollow interior and defining a container interior, and at least one heating element positioned in said housing to heat said container interior. The food container includes a non-elliptical container shape and the housing includes a non-elliptical housing shape. The container interior is structured to tolerate a high pressure cooking environment.

Abstract: A cooking system positionable on a support surface includes a housing having an internal cooking compartment and an opening formed in said housing for accessing said internal cooking compartment. The housing is positionable about the support surface in both a first orientation and a second, distinct orientation. At least one heating element is associated with said internal cooking compartment. The at least one heating element is operable to heat said internal cooking compartment in both said first orientation and said second orientation.

Abstract: A cooking system positionable on a support surface includes a housing having an internal cooking compartment and an opening formed in the housing for accessing said internal cooking compartment. At least one heating element is provided for heating said internal cooking compartment. The heating element is operable to heat the internal cooking compartment while the opening is at least partially exposed to an ambient environment to allow fluid transfer between the ambient environment and the internal cooking compartment. An output from said at least one heating element is variable across said internal cooking compartment during operation of the system.

Abstract: Optical devices having a first semiconductor slab including a first lateral boundary for an optical mode and a second semiconductor slab above and asymmetrically overlapping the first lateral boundary included in the first semiconductor slab and including an edge of a second lateral boundary for the optical mode. The second lateral boundary is disposed above and to a side of the first lateral boundary. The first semiconductor slab is of a silicon material while the second semiconductor slab is of a III-V material. A first and a second electrical contact are coupled to the second semiconductor slab, one on each lateral side of the second lateral boundary. The optical device further includes an optical waveguide region formed by the first and second lateral optical mode boundaries, wherein a complex refractive index of the optical waveguide region changes based on an electrical difference applied between the first and second electrical contacts.

Abstract: An electro-optic modulator comprising a first region of silicon material and a second region of non-silicon material. The second region may at least partially overlap the first region to create a lateral overlap region. An optical waveguide of the modulator may be included in the lateral overlap region and comprise of both the silicon and the non-silicon material. The refractive index of at least one of the silicon material and the non-silicon material within the optical waveguide may change based on an electrical difference applied between electrical contacts of the modulator.

Abstract: A tunable laser source with integrated optical modulator. The tunable laser source is a widely tunable semiconductor laser that is comprised of an active region on top of a thick, low bandgap, waveguide layer, wherein both the waveguide layer and the active region are fabricated between a p-doped region and an n-doped region. An electro-absorption modulator is integrated into the semiconductor laser, wherein the electro-absorption modulator shares the waveguide layer with the semiconductor laser.

Abstract: A tunable laser source with integrated optical modulator. The tunable laser source is a widely tunable semiconductor laser that is comprised of an active region on top of a thick, low bandgap, waveguide layer, wherein both the waveguide layer and the active region are fabricated between a p-doped region and an n-doped region. An electro-absorption modulator is integrated into the semiconductor laser, wherein the electro-absorption modulator shares the waveguide layer with the semiconductor laser.

Abstract: A tunable laser source (10) with an integrated optical modulator (20). The laser source (10) is a widely tunable semiconductor laser that is comprised of an active region on top of a thick low bandgap, waveguide layer (22), wherein both the waveguide layer (220) and the active region are fabricated between a p-doped region and an n-doped region. An electro-absorption modulator (20) is integrated into the semiconductor laser (10), wherein the electro-absorption modulator (20) shares the waveguide layer (22) with the semiconductor laser.

Abstract: A semiconductor tunable laser (10) and an interferometer (12) coupled to the tunable laser (10) are monolithically fabricated in a semiconductor heterostructure. The laser also comprises a buried ridge stripe waveguide laser. The interferometer (12) has a semiconductor optical amplifier (38) coupled in each arm. A cross-gain semiconductor optical amplifier converter is coupled to the interferometer (12). The semiconductor optical amplifier (38) coupled in each arm is biased so that an optical path length difference between the two arms is in antiphase which results in destructive interference. The output of the tunable laser (10) is coupled to a coupler. A semiconductor optical amplifier (38) is used as a gain controller for the semiconductor optical amplifiers in the interferometer (12) to allow wavelength conversion over a larger range of input signal powers.

Abstract: The present invention relates to the tailoring the reflectivity spectrum of a sampled-grating distributed Bragg reflector (SGDBR) by applying digital sampling theory to choose the way each reflector is sampled. The resulting mirror covers a larger wavelength span and has peaks with a larger, more uniform, coupling constant (?) than the mirrors produced using conventional approaches. The improved mirror also retains the benefits of the sample grating approach. Additionally, most of the embodiments are relatively simple to manufacture.

Abstract: A monolithically-integrated semiconductor optical transmitter that can index tune to any transmission wavelength in a given range, wherein the range is larger than that achievable by the maximum refractive index tuning allowed by the semiconductor material itself (i.e. ??/?>?n/n). In practice, this tuning range is >15 nm. The transmitter includes a Mach-Zehnder (MZ) modulator monolithically integrated with a widely tunable laser and a semiconductor optical amplifier (SOA). By using an interferometric modulation, the transmitter can dynamically control the chirp in the resulting modulated signal over the wide tuning range of the laser.

Abstract: A wavelength monitor is provided based on the transmission response of an optical filter. The monitor provides feedback to the laser enabling it to lock to any given wavelength within its tuning range. The invention is also a process for integrating the wavelength monitor directly on chip with a variety of tunable semiconductor lasers. The invention also comprises a method for controlling the wavelength of a tunable laser by using a wavelength monitor to measure the output light and provide feedback to a control system. The laser and wavelength monitor are integrated together on a single indium phosphide chip. The wavelength monitor comprises a filter with a wavelength dependent transmission function and a pair of detectors. One detector is illuminated with light that has passed through the filter and the other provides a reference to measure the input intensity. Taking the ratio of the filtered light level to the unfiltered light provides a wavelength dependent wavelength.

Abstract: A method of generating an optical signal provides a diode laser assembly including an epitaxial structure formed on a substrate. A laser and an amplifier are formed in the epitaxial structure. At least a portion of the laser and amplifier share a common waveguide. A tunable laser output is produced from the laser. The laser output is coupled into the amplifier along the common waveguide. An optical signal is generated from the amplifier.

Abstract: A laser assembly includes an epitaxial structure formed on a substrate. A separately controllable tunable laser resonator and external optical amplifier are formed in the epitaxial structure. At least a portion of the laser and amplifier share a common waveguide, which may have non-uniform optical or geometrical properties along the waveguide centerline or across a normal to the centerline.

Abstract: A method of making a diode laser assembly provides a substrate. An epitaxial structure is formed on the substrate. Different areas of the epitaxial structure have different optical properties. A laser, a modulator and a coupler are formed in the epitaxial structure.