FIBER COUPLED LASER DIODE MODULE ALIGNMENT
Annotation
Subject of Research. The paper presents the results of the laser diode module optical system alignment, which includes three steps: the laser diode radiation collimation, the laser beams multiplexing from three sources and the radiation input into the optical fiber. The laser diode module optical system with a fiber output is realized as a stepped configuration of sources position with a height shift of laser diodes relative to each other by 1.6 mm. Semiconductor laser diodes with Fabry-Perot resonator and peak generation wavelength of 1020 nm are used as radiation sources. The core diameter of the output multimode quartz optical fiber is equal to 400 μm and the numerical aperture is NA 0.22. Method. The method of spatial multiplexing for laser beams from three laser diodes in a continuous-wave mode was implemented. The residual divergence and deviations control of the optical axes in each channel were carried out by measuring the laser beam profiles in two sections with the beam profile meter displaced strictly along the laser beams propagation axis by 100 mm. The radiation input efficiency into the optical fiber was determined by measuring the radiation power before entering the laser beam and at the output from the optical fiber. Main Results. The maximum output power of the laser diode module prototype is 19.65 W. The loss reduction is achieved owing to the application of anti-reflective coatings on the lenses and a highly reflective coating on the mirrors, taking into account the spectral composition of the radiation and the angle of incidence of the laser beams. Practical Relevance. The implemented assembly method can be used to manufacture higher output power laser diode modules, including more than three laser diodes without reduction in effectiveness. The developed micro-optical component positioning test bench allows for high-precision alignment of lenses and mirrors, and optical fiber coupling of optoelectronic devices.
Keywords
Постоянный URL
Articles in current issue
- СOMPARISON OF ON-LINE AND OFF-LINE FRIED PARAMETER ESTIMATION METHODS
- INTERFERENCE OF MULTI-MODE WEAK COHERENT STATES FOR TWIN-FIELD QUANTUM COMMUNICATION APPLICATIONS
- EFFECT OF OXIDE ADDITIVES ON UP-CONVERSION LUMINESCENCE OF ERBIUM IONS IN ALKALINE GERMANATE GLASSES
- MINIMIZATION OF NOISE FLOOR LEVEL OF FIBER-OPTIC INTERFEROMETRIC SENSOR ARRAY BY ADJUSTMENT OF OPERATIONAL AMPLIFIER CASCADE PARAMETERS
- ASSESSMENT OF CUTANEOUS BLOOD FLOW IN LOWER EXTREMITIES BY IMAGING PHOTOPLETHYSMOGRAPHY METHOD
- DIGITAL IMAGE ABERRATION CORRECTION TECHNIQUE FOR STRUCTURED ILLUMINATION MICROSCOPY
- THREE-DIMENSIONAL SIMULATION OF VOLUME PICTORIAL HOLOGRAM BY PHOTOGRAMMETRY METHOD
- OPTIMIZATION TECHNIQUES APPLIED TO INITIAL DESIGNS OF ULTRAVIOLET LITHOGRAPHIC OBJECTIVE
- NONDESTRUCTIVE EXPOSURE OF DIRECTED OPTICAL RADIATION ON DEVICES WITH LIGHT-SENSITIVE SENSORS
- ROBUST DYNAMICAL FEEDBACK DESIGN FOR BALLPOSITION CONTROL ON ROTARY PLATFORM
- MORPHOLOGY AND OPTICAL PROPERTIES OF AlN FILMS ON SAPPHIRE
- TEXT CLUSTERING POWERED BY SEMANTICO-SYNTACTIC FEATURES
- SIMULATION MODEL OF REDUNDANT MACHINE-TO-MACHINE EXCHANGE WITH ORGANIZATION OF QUEUES FOR ACCESS TO AGGREGATED CHANNELS
- SEA SURFACE IMAGE SUB-BAND ANALYSIS BASED ON COSINE TRANSFORM
- INTEGRATED ENVIRONMENT ARCHITECTURE FOR SOFTWARE DEVELOPMENT WITH STRUCTURED EDITING SUPPORT
IMPLEMENTATION OF AGENT INTERACTION PROTOCOL WITHIN CLOUD INFRASTRUCTURE IN GEOGRAPHICALLY DISTRIBUTED DATA CENTERS
- IDENTIFICATION OF EQUIPMENT DEGRADATION PHASE IN PREVENTATIVE MAINTENANCE SYSTEMS
- ENERGY-BASED ANALYSIS OF BIOINSPIRED MECHANISM FOR CHEETAH ROBOT LEG
- MODELING OF RESONANCE EFFECTS IN SPINE WITH ADDITIONAL FIXING ELEMENTS
- SIDE-CHANNEL INFORMATION LEAK DETECTION WITH WAVELET TRANSFORMATION
- SIMULATION OF UNORGANIZED GROUP BEHAVIOR IN CASE OF EMERGENCY
- EFFICIENCY RESEARCH OF SIGNAL RECOVERY ALGORITHMS WITH LONG GAPS AND RARE ARRIVAL OF MEASUREMENTS
- MODELING OF WIRELESS NETWORKS IN OMNET ++ ENVIRONMENT INVOLVING INET FRAMEWORK
- LEARNING ENVIRONMENT DESIGN USING ETHEREUM BLOCKCHAIN SMART CONTRACTS
- WEB PORTALS FOR MANAGEMENT OF CLOUD SERVICES WITHIN DATA CENTRES