Lasere cu semiconductor introducere
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Lasere cu semiconductor Introducere. Laser Pointer. Laser inscriptor. Laser cu radia ţ ie pe o fa ţ et ă lateral ă Caracteristica de directivitate. VCSEL – Tunable Vertical Cavity Laser. Locul laserului in lantul de transmisie. La fel pentru un emitator cu LED.

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Lasere cu semiconductor Introducere

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Lasere cu semiconductor introducere

Lasere cu semiconductorIntroducere


Laser pointer

Laser Pointer


Laser inscriptor

Laser inscriptor


Laser cu radia ie pe o fa et lateral caracteristica de directivitate

Laser cu radiaţie pe o faţetă lateralăCaracteristica de directivitate


Vcsel tunable vertical cavity laser

VCSEL – Tunable Vertical Cavity Laser


Locul laserului in lantul de transmisie

Locul laserului in lantul de transmisie


La fel pentru un emitator cu led

La fel pentru un emitator cu LED


Launching light into the fiber

Launching Light into the Fiber


Semiconductor laser construction

Semiconductor Laser Construction


Lasere cu semiconductor introducere

Cuplajul fibra – fotodioda, respectiv sursa – fibra


Pierderi de cuplaj

Pierderi de cuplaj


Lasere cu semiconductor introducere

Avantajul radiatiei pe cant (edge-emitting)


Lasere cu semiconductor introducere

Diverse tipuri de pompaj


Lasere cu semiconductor introducere

Injectia radiatiei generate de un LED intr-un ghid plan


Cuplarea radiatiei intr un ghid plan printr o lentila

Cuplarea radiatiei intr-un ghid plan printr-o lentila


Caracteristici ale diodei laser

Caracteristici ale diodei laser


Ld transfer characteristic

LD Transfer Characteristic


Typical characteristics

Typical Characteristics


Disc laser

Disc Laser


Disc drive

Disc Drive


Laser drivers

Laser Drivers

Circuite de comandă pentru Diode Laser


Laser cu fotodiod monitor

Laser cu Fotodiodă Monitor


Disc drive schema electric

Disc Drive – Schema electrică


Disc drive electronica

Disc Drive – Electronica


Analog laser drive

Analog Laser Drive


Digital laser drive

Digital Laser Drive


No iuni fundamentale a a cum apar n pdfs foile de catalog ale laserelor

Noţiuni Fundamentale aşa cum Apar în PDFs ( foile de catalog ale laserelor )

  • high-speed modulation driver

  • biasing block with APC

  • CMOS control

  • steady bias current

  • APC ( Automatic Power Control) adjusts laser diode bias current

  • modulation current up to 80 mAs

  • high-speed differential pair switches

  • rise and fall times typically 50 ps


Siemens semiconductor power laser and its driver

Siemens : Semiconductor Power Laser and its Driver


Transmitter application circuit with 5v ecl inputs

Transmitter / Application Circuit with +5V ECL Inputs


Un exemplu wld3343

Un exemplu : WLD3343

GENERAL DESCRIPTION

The WLD3343 is a general-purpose analog hybrid circuit

for use in ultrastable laser diode driver applications. The

WLD3343 maintains precision laser diode current (constant

current mode) or stable photodiode current (constant power

mode) regulation using electronics that are compatible with

any laser diode type. Supply up to 2 Amps of current to

your laser diode from a single +5 Volt power supply.

Connect two or more WLD3343 units together to

drive higher output currents.


Driver ld tipic

Driver LD tipic


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