Salam Nazhan

7 Questions 31 Answers 0 Followers

Questions related from Salam Nazhan

What are the potential health risks due to massive distributed antenna systems in our Neighborhoods? any tips for protection ?

A huge number of antennas (transmitters and recievers devices) systems popping up over the bulding in our neighborhoods, for the internet and communication services. what is the possible risk of...

28 September 2018 7,486 9 View

Is there an idea or documents about the relationship between the soil salinity and laser beam?

what we try to do is, measure the soil salinity distribution using the laser beam of a semiconductor laser device, which can help to evaluate the soil salinity

19 April 2018 5,019 8 View

Does the orthogonality of a semiconductor laser change as a function of polarization optical feedback?

A vertical-cavity surface-emitting lasers ( VCSELs ) usually emit orthogonal linearly polarized associated with crystalline orientation, when external optical feedback with rotated-polarization...

22 January 2015 3,668 1 View

How do we precisely measure the relaxation oscillation frequency of a semiconductor laser in the lab?

In the lab I have to use a semiconductor laser VCSEL with modulation signal,so I would like to measure the relaxation oscillation frequency of the laser to make sure that the modulation frequency...

26 September 2014 310 6 View

How many theoretical models are there about VCSELs characteristics using rate equation?

I want to use a simulink code to verify the experimental result which have been done on a VCSEL device by using external optical feedback, the measurements were the L-I curve, intensity of...

09 September 2014 3,089 0 View

Does external optical feedback enhance or reduce the nonlinearity of the VCSEL?

By using an optical feedback, what is the possibility of reducing or enhancing the non-linearity properties of VCSEL with modulation signal?

10 June 2014 6,309 11 View

What is the best and most accurate method to measure relative intensity noise of a semiconductor laser?

In order to measure relative intensity noise of VCSELs using optical spectrum analyses or digital oscilloscope.

02 June 2014 1,350 1 View