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1. WO2022006385 - ACTIVE BIAS CIRCUIT

Publication Number WO/2022/006385
Publication Date 06.01.2022
International Application No. PCT/US2021/040069
International Filing Date 01.07.2021
IPC
H04B 10/50 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
H01S 5/00 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
H01S 5/068 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
068Stabilisation of laser output parameters
CPC
H01S 5/0042
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
0014Measuring characteristics or properties thereof
0042On wafer testing, e.g. lasers are tested before separating wafer into chips
H01S 5/068
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5Semiconductor lasers
06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
068Stabilisation of laser output parameters
H03H 7/06
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
7Multiple-port networks comprising only passive electrical elements as network components
01Frequency selective two-port networks
06including resistors
H04B 10/504
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
503Laser transmitters
504using direct modulation
H04B 10/50575
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
503Laser transmitters
505using external modulation
5057using a feedback signal generated by analysing the optical output
50575to control the modulator DC bias
H04B 10/50595
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
50Transmitters
501Structural aspects
503Laser transmitters
505using external modulation
5059using a feed-forward signal generated by analysing the optical or electrical input
50595to control the modulator DC bias
Applicants
  • MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC. [US]/[US]
Inventors
  • KENNAN, Wayne
  • OMORI, Toshi
Agents
  • PERILLA, Jason M.
Priority Data
63/046,89901.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ACTIVE BIAS CIRCUIT
(FR) CIRCUIT DE POLARISATION ACTIF
Abstract
(EN) Active bias circuits for integrated devices are described. In one example, an active bias circuit includes a voltage control element to establish a control voltage, an active bias device to provide a power bias responsive to the control voltage, and a compensation circuit connected to the active bias device. The compensation circuit can be configured to set output impedance and compensate for parasitic capacitance of the active bias device. In another embodiment, the voltage control element can be omitted, and a control voltage can be relied upon to directly control the power bias output provided by the active bias device. The active bias circuit can be used to power a driver of an integrated optical transmitter, in one example, among other possible applications.
(FR) Sont décrits des circuits de polarisation actif destinés à des dispositifs intégrés. Dans un exemple, un circuit de polarisation actif comprend un élément de commande de tension pour établir une tension de commande, un dispositif de polarisation actif pour fournir une polarisation de puissance en réponse à la tension de commande, et un circuit de compensation connecté au dispositif de polarisation actif. Le circuit de compensation peut être conçu pour définir une impédance de sortie et compenser la capacité parasite du dispositif de polarisation actif. Dans un autre mode de réalisation, l'élément de commande de tension peut être omis, et une tension de commande peut dépendre de celui-ci pour directement réguler la sortie de polarisation de puissance fournie par le dispositif de polarisation actif. Le circuit de polarisation actif peut, dans un exemple, être utilisé pour alimenter un circuit d'attaque d'un émetteur optique intégré, entre autres applications possibles.
Latest bibliographic data on file with the International Bureau