Vim li cas laser diodes muaj ob ntu: LD thiab PD

Lub laser diode yog ib qho khoom siv hluav taws xob uas muaj ob qhov tseem ceeb: lub laser emitting ib feem thiab ib feem tau txais laser. Ob ntu no sib koom ib qho electrode, yog li tag nrho cov cuab yeej muaj peb lub electrodes.
Thaum lub sijhawm ua haujlwm, nyob rau hauv kev tsis ncaj ncees rau pem hauv ntej, lub photoactive semiconductor ntawm cov junctions zoo siab thiab emits lub teeb. Lub teeb no cuam tshuam nrog optical resonant kab noj hniav, ntxiv dag zog rau qhov tshwj xeeb wavelength ntawm lub teeb tawm los ntawm kev sib tshuam. Cov khoom ntawm lub teeb no yog txiav txim siab los ntawm lub cev lub cev ntawm cov khoom.

Txawm hais tias laser diodes muaj ntau yam zoo, xws li me me, lub teeb yuag, tsis muaj zog noj, yooj yim tsav Circuit Court, yooj yim modulation, tsis kam rau cov neeg kho tshuab poob siab thiab kev co, lawv rhiab heev rau overcurrent, overvoltage thiab electrostatic cuam tshuam.
Yog li ntawd, yuav tsum tau saib xyuas tshwj xeeb thaum siv los xyuas kom meej tias nws cov kev ua haujlwm tsis pub dhau qhov siab tshaj qhov tso cai. Tshwj xeeb, cov kev ntsuas hauv qab no tuaj yeem ua tau:
Siv DC qhov chaw tam sim no los tsav lub laser diode;
Txuas tam sim no limiting resistors nyob rau hauv series thiab bypass capacitors nyob rau hauv parallel ntawm lub laser diode Circuit Court;
Vim tias qhov kub ntawm lub laser diode nce, qhov tam sim no ntws los ntawm nws yuav nce. Yog li ntawd, kev ntsuas kub kom tsim nyog yuav tsum tau ua kom paub tseeb tias cov cuab yeej ua haujlwm nyob rau hauv qhov ntsuas kub uas tsim nyog;
Txhawm rau tiv thaiv kev puas tsuaj rau lub laser diode vim qhov hluav taws xob rov qab ntau dhau, lub nrawm silicon diode tuaj yeem tiv thaiv kev sib txuas ntawm ob qho kawg.