Siam Uddin

5 Questions 3 Answers 0 Followers

Questions related from Siam Uddin

How to input multiplexed wavelengths in comsol?

I need to input multiple input through waveguide designed in comsol. I can design a single input of wavelength. How can I input a multiplexed input?

08 March 2022 6,990 1 View

Does low loss saturable absorber yield high energy pulses?

In a fiber laser cavity, which is passively mode locked, a low loss SA is inserted. Can it help to generate high energy pulses?

04 February 2021 1,546 3 View

What type of data/information can be derived from Raman spectra of Graphene?

I can calculate ID/IG and I2D/IG ratio and number of layers from intensity of peaks. Is there anymore information can be derived from the spectra? What could be the potential reason for the...

18 January 2018 7,940 1 View

Is there any relation between separation of side-bands of modulated signal with fourier transform?

I am modulating an optical signal with carrier frequency (1 GHz to 20 GHz). At lower carrier frequency (1 GHz), the side-bands are separated by low distance. But the distance becomes higher when...

11 December 2016 1,557 4 View

Does bandgap of a material influence to optical switching? If yes, how does it link to the optical switching applications?

Graphene has no bandgap, hence, it's transistor on-off ratio is low. But how it be a good material for optical switching?

29 October 2016 8,695 0 View