Abstract:
An optical or optoelectronic receiver and module, and methods of making and using the same, are disclosed. The receiver includes a photodetector, a first microelectromechanical device configured to reflect a multi-wavelength optical signal, a thin film filter configured to receive the multi-wavelength optical signal reflected by the first microelectromechanical device and separate a single-wavelength optical signal from the multi-wavelength optical signal, a first lens configured to focus the single-wavelength optical signal on the photodetector, and a second microelectromechanical device configured to reflect the single-wavelength optical signal towards the first lens. Each wavelength of the multi-wavelength optical signal represents or corresponds to a unique channel over which the receiver receives optical signals. The present receiver and methods enable low-cost, high-volume manufacturing of multi-channel optical or optoelectronic receivers.
Abstract:
An optical module housing that may be easily seated, locked in and removed from a socket, thereby reducing or eliminating potential damage to the module and socket, and methods for making and using the housing are disclosed. The module housing generally includes a chassis, one or more pivots attached to the chassis, a latch configured to secure the housing in a corresponding slot when in a locked position, a slider configured to be in contact with and/or connected to the latch and to move the latch relative to the chassis, the latch and/or the slider being configured to move on and/or around the pivot(s) and a handle configured to be in contact with and/or connected to the slider such that when the handle moves from a first position to a second position, the slider and latch move to the locked and/or an unlocked positions.
Abstract:
Methods, architectures, circuits, and/or systems for monitoring operating parameters and/or generating status indications associated with electronic device operation are disclosed. The method can include (i) monitoring a first operating parameter related to operation of the electronic device to determine a first parameter value, (ii) calculating a difference between the first parameter value and a predetermined value for the first operating parameter, (iii) monitoring a second operating parameter on which thresholds for operational warnings and/or alarms are based to determine a second parameter value, (iv) updating or changing the thresholds based on a predetermined change or event in the second parameter value, (v) comparing the difference to the updated or changed thresholds, and (vi) generating a corresponding one of the operational warnings and/or alarms when the difference crosses at least one of the thresholds in a predetermined direction.
Abstract:
An optical multiplexer and methods of making and using the same are disclosed. The multiplexer generally includes a beam splitter and a polarization beam splitter. The beam splitter is generally configured to combine first and second polarized optical signals by reflecting a first polarized optical signal towards a first target and allowing a second polarized optical signal to pass through towards the first target. The polarization beam splitter is generally configured to combine the first and second polarized optical signals with a third polarized optical signal by either (i) reflecting the third polarized optical signal towards a second target and allowing the first and second polarized optical signals to pass through towards the second target, or (ii) reflecting the first and second polarized optical signals towards the second target and allowing the third polarized optical signal to pass through towards the second target.
Abstract:
A circuit, optical transceiver and/or methods for using the same may be useful for determining average power, extinction ratio, and/or modulation amplitude when monitoring an optical transceiver and/or optical network. The circuit generally comprises a photodiode configured to generate a first current responsive to an optical signal, a current mirror coupled to a first terminal of the photodiode, and a detector coupled to a second terminal of the photodiode. The current mirror is configured to produce a second current equal to or proportional to the first current, and the detector is configured to determine a power or amplitude of the optical signal. Further, the present scheme may communicate information using a low speed signal superimposed on or combined with the relatively high speed optical signal.
Abstract:
Methods, architectures, circuits, and/or systems for monitoring operating parameters and/or generating status indications associated with electronic device operation are disclosed. The method can include (i) monitoring a first operating parameter related to operation of the electronic device to determine a first parameter value, (ii) calculating a difference between the first parameter value and a predetermined value for the first operating parameter, (iii) monitoring a second operating parameter on which thresholds for operational warnings and/or alarms are based to determine a second parameter value, (iv) updating or changing the thresholds based on a predetermined change or event in the second parameter value, (v) comparing the difference to the updated or changed thresholds, and (vi) generating a corresponding one of the operational warnings and/or alarms when the difference crosses at least one of the thresholds in a predetermined direction.
Abstract:
A light-emitting device, multi-channel light-emitting device, and method(s) of making the same are disclosed. The light-emitting device can include a substrate; a lower contact layer on or over the substrate comprising a first lower contact in a first region and a plurality of second lower contacts in a second region; a plurality of light-emitting thin film devices on or over the first lower contact in the first region; a plurality of light-modulating thin film devices on or over the plurality of second lower contacts in the second region; a plurality of first upper contacts on or over the plurality of light-emitting thin film devices; a plurality of second upper contacts on or over the plurality of light-modulating thin film devices; and an isolation region between the first and second regions, electrically separating the plurality of first upper contacts and the plurality of second upper contacts.
Abstract:
A small form-factor pluggable (SFP) optical transceiver includes a casing configured to accommodate optical and electrical devices. During normal operation, the casing is connected to a switchboard via a connector in the switchboard, and the optical devices are outside the switchboard, thereby exposing optical devices sensitive to high temperature to the outside air, reducing the operational temperature of the optical device portion relative to the heated portion inside the switchboard. Thus, the present SFP optical transceiver advantageously improves operational performance and extends the life of the device. Also, the present SFP optical transceiver having the optical device portion outside the switchboard advantageously improves the cooling performance for the optical device portion.
Abstract:
A small form-factor pluggable (SFP) optical transceiver includes a casing configured to accommodate optical and electrical devices. During normal operation, the casing is connected to a switchboard via a connector in the switchboard, and the optical devices are outside the switchboard, thereby exposing optical devices sensitive to high temperature to the outside air, reducing the operational temperature of the optical device portion relative to the heated portion inside the switchboard. Thus, the present SFP optical transceiver advantageously improves operational performance and extends the life of the device. Also, the present SFP optical transceiver having the optical device portion outside the switchboard advantageously improves the cooling performance for the optical device portion.
Abstract:
An optical transceiver, optical network and methods for using the same are disclosed. The optical transceiver and/or optical network and related methods may be useful for independently monitoring the optical transceiver and/or optical network. The optical transceiver generally includes an optical receiver configured to receive optical information; circuitry configured to calculate signal strength values of the received optical information from a plurality of remote optical transmitters; logic configured to process the signal strength values for each of the plurality of remote optical transmitters; and one or more memories configured to store the signal strength values. Optionally, the optical transceiver may notify a system or host when the transceiver, network or component thereof is operating outside a predetermined threshold.