Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Comparison of the continuous wave mode and pulsed mode lasers

Status
Not open for further replies.
D

drabos

Full Member level 6
Full Member level 6
Joined
Jan 3, 2006
Messages
397
Helped
45
Reputation
90
Reaction score
15
Trophy points
1,298
Activity points
3,769
What is the difference between the continous wave mode and pulsed mode lasers?
What structures are used for CW and what structures for pulsed?
What is the limitation using a CW laser diode in pulsed mode?
 

Laser diode

Generally, laser diode can be modulated digitally or in contiueosly. I n digital application such as OOL, the laser diode will be injected by a current of two values, under threshold and above threshold to get ON OFF pulse. the limitations are many...such as laser line width, temperature of operation, laser FM transfer function and RIN noise and MPN noise in the case of multimode laser diodes. (this is summary) the complete is like a sea, so specified please
 

    D

    drabos

    Points: 2
    Helpful Answer Positive Rating
Re: Laser diode

CW means its duty cycle is longer. Pulsed means the duty cycle is broken up into time chunks. Solid state (semiconductor) lasers can not tolerate CW mode as they could fail within a few hours of operation so they operate better in pulsed mode. Gas lasers do much better in CW mode and are used in optical communications.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top