Optical Output Power Of Laser Emission

hi zulkarnain,
optisytem implemenatation of to study the nature of optical output power from a laser depending on various parameters of the Laser and the input signal, i guess is simple.

you just connect some laser to receiver.

but before i suggest you some thing , you please it abit further.

with regards

hi zulkarnain,

i think if you have optisystem , the optisystem samples are quit handy for you to study the nature of optical output power from a laser depending on various parameters of the Laser and the input signal.

if dont have optisystem samples. you can visit optiwave site for further information.

with regards

hi zulkernain,
you can use both Return-To-Zero Pulse generator in place of Non-Return-To-Zero Pulse generator.

since you have to also check the nature of optical output power from a laser depending on input signal.the RZ, NRZ or any other pulse format is your input

with regards

hi zulkarnian ;
if you would used the the data for transmission purposes ,then performance of Return-To-Zero Pulse and Non-Return-To-Zero Pulse generator pulse will have to be selected as per needs.
example optical band of RZ is sligtly greter than NRZ, hence suffers little for dispersion than RZ

with regards

hi zulkarnian ,

0dbm means 1milliwatt.
power in dbm = log power(in milli watt)/1mw
there is no logic behind behind increasing power to vary high value.
however you can change power of laser as you wish for simulation purposes.

i suggest to please explain what are you up to

with regards

hi zulkarnain,
incresing power will utimately will lead to higher output and greater sensitivity at the detector,
however for practical considerations incresing power to the very high level is not good idea. it will leadto non linear effects and thermal effects at both transmitter and detectors.

with regards

hi zulkarnian,

i suggest to clear the working of components first,
there is nothing in switching of laser , since you are using cw laser (contineous wave laser).

with regards

hi zulkarnain ,
you are taking about dmls i.e directly modulated lasers, if soo then switching speed is of necessary consideration for the lasers, because the data rate may be in 100;s of gbps in some networks.
more over we have to check for the extinction ratio(i.e on of ratio) for sauch laser

with regards

yor are welcome zulkarnain

Hi zulkarnain,
We can study the optical output power of laser by connecting it to optical receiver through optical fiber and we can connect an attenuater in between them. Now we can vary parameters of laser like power in dbm (mw) and we check the optical output power the receiver ends by optical power meters.

Hello zulkarnain
This is a reply to your query “That means if we are increasing the power to higher levels it may lead to burnout of the laser.”
I think by increasing we just increase the frequency of the wave.
Corrections are welcome.
Regards.

Hi Zulkaran
This is a reply to your comment “Will you please tell me how to connect the circuit components to study the various parameters”
Connection of the components should in a systematic without voilating any fundamental concept of optical communication.
Then analyyze and verify the results step by step.. You will surely get the correct results without any error.

Hope your query has been resolved.
Regards.

Hello Asif
This is a reply to your comment as “i think if you have optisystem , the optisystem samples are quit handy for you to study the nature of optical output power from a laser depending on various parameters of the Laser and the input signal. If dont have optisystem samples. you can visit optiwave site for further information.”
I think insted of visiting optiwave site for the information, it can be done by using the optisystem kits.
Regards.