Arpit Arvind Khandelwal

33 Questions 31 Answers 0 Followers

Questions related from Arpit Arvind Khandelwal

Can accelerometer based wearable motion sensors be used to detect motion of fingers or a flex sensor is best suited for this?

I want to detect relative movement between fingers with wearable sensors. Which could be an appropriate technology for this?

01 January 2019 2,544 3 View

Can someone suggest me good book dealing with simulation of optoelectronic devices?

I am looking for a book to learn simulation of mostly semiconductor optoelectronic devices.

10 October 2018 422 0 View

What are practically achievable range and data rate for LoRa, SigFox and other IoT technologies?

If anyone has tested these IoT technologies in outdoor environment, could you please help me with max range and data rate that is actually achievable? I feel there is lot of difference between...

05 May 2018 1,400 0 View

What is the most suitable transceiver module for line of sight wireless transmission in 10 kms range?

I want a wireless transceiver module for remote sensing application with range about 10km. Xbee would not be sufficient. Can anyone suggest an alternative?

04 April 2018 5,757 10 View

Could anyone suggest some good journal to submit a purely theoretical work on semiconductor optics?

My work is related to theoretical modeling of a phenomenon in semiconductor lasers and I want to submit it in a reputed journal. Most journals in optics and photonics require experimental work....

03 March 2016 1,418 5 View

What is the physical significance of 'k' in a E-k diagram of a semiconductor?

What does 'k' refers to in a E-k diagram ? Is it a wavevector or something else?

02 February 2016 943 10 View

Is there any way other than "fft" to find the frequency content of a signal in Matlab?

I have complex values of a periodic signal which is clearly visible in time domain. But I want to find its frequency content ? FFT is not working with me and I am looking for alternate ways to...

12 December 2015 9,282 20 View

Can anyone suggest some good papers or books to study Optical Waveguide Analysis?

I want to learn optical waveguide analysis using methods such as FD, FDTD, BPM and EIM, but I am not sure how and where to start ? Any guidance will be helpful.

10 October 2015 342 11 View

How can the random noise sources like Angle Random Walk in a semiconductor gyroscope be theoretically calculated?

Is it possible to theoretically predict the magnitude of random errors in semiconductor ring laser gyros?

09 September 2015 7,015 0 View

Can someone suggest me a good tool for simulating Semiconductor Ring Lasers?

I want to simulate both integrated and bulk fiber-optic semiconductor ring laser. Which of the tools e.g. Lumerical, Comsol, OptiFDTD will be most useful to me?

09 September 2015 4,776 1 View

What is the beam area of a laser wave and how to calculate it?

How do I find out the beam area of a light wave?

06 June 2015 2,854 0 View

What is the difference between the interference of light waves and coupling of light waves?

Two light waves of slightly different frequencies are present at the same time in the same medium. Will they couple or interfere?

05 May 2015 5,680 9 View

How can I achieve lasing of stimulated brillouin scattering (SBS) in an optical fiber ring resonator?

I want to sustain SBS in a fiber ring resonator which contains a SOA inside it. What are the conditions on the power and drive current of SOA to achieve SBS lasing?

05 May 2015 9,360 4 View

How is Quasi Fermi level related to voltage change in a diode?

If the Quasi Fermi level in a semiconductor diode changes then what will be the effects on the voltage across its terminals?

03 March 2015 6,556 7 View

Why can't semiconductor RLG attain the performance levels of He-Ne RLG?

Even after recent developments in semiconductor technology, what are the main reasons for the poor performance of semiconductor RLG as compared to He-Ne RLG?

02 February 2015 5,267 0 View

Why does lock-in in a ring laser gyro occurs at low rotation rates only?

If lock-in occurs due to backscattering, then it should occur at high rotation rates also. What is the reason behind low rotation rate and lock-in?

02 February 2015 6,904 6 View

How can one calculate the intensity backscattering coefficient of an SOA?

I want to find out intensity backscattering coefficient of an SOA to quantify the amount of backscattered light. What is the way to do it as the data sheet does not specify anything?

01 January 2015 2,133 1 View

What will be the output when two light waves with frequency difference in kHz range interfere ?

Two laser beams whose frequencies differ by 50 kHz are made to interfere. What will be the output ?

01 January 2015 1,204 14 View

Does a Y-junction coupler cause interference of two optical waves of different frequencies?

What is the output of a Y-junction coupler?

01 January 2015 3,175 3 View

What is the difference between mode competition and gain competition in a ring laser?

What is the effect of these phenomena on the working of Semiconductor ring laser gyroscope?

01 January 2015 5,602 4 View

What is a suitable way to model a semiconductor ring laser gyroscope system?

I want to model a semiconductor ring laser gyroscope mathematically. What is a suitable possible way to do it?

12 December 2014 8,263 4 View

Is it possible to build a capacitor bank of 6-8 kV capacity using capacitors, transformers, etc?Or does it make more sense to purchase one?

The intended application is to apply capacitor bank for Electromagnetic metal forming of metal sheets.

07 July 2014 2,148 1 View

What is the main reason Brillouin RLG and Raman RLG are not used extensively?

What are the drawbacks of Brillouin RLG and Raman RLG as compared to semiconductor RLG ?

07 July 2014 4,964 1 View

Where can I get a good ebook on semiconductor lasers

Can anyone please help me to get good ebook on Semiconductor Lasers.

07 July 2014 8,292 1 View

What is the difference between an optical and an acoustic phonon?

What are the optical phonons and the acoustic phonons in an optical fiber?

07 July 2014 8,712 16 View

Why is 1550 nm the most widely used wavelength in optical communication systems?

What drawbacks do other wavelengths have?

04 April 2014 9,604 20 View

Do ring laser gyroscopes and resonant fiber optic gyroscopes really work on the Sagnac Effect?

Working principle of ring laser gyroscopes.

03 March 2014 480 3 View

Can a semiconductor optical amplifier (SOA) be used as a photo-detector when forward biased?

03 March 2014 6,794 9 View

Does anyone has an access to SPIE Digital Library and Applied Physics Letters?

I want to download some research papers from these. It will be of great help to me in my research.

02 February 2014 7,086 1 View

Why are there no holes in conductors?

Reason for absence of holes in conductors.

01 January 2014 8,442 8 View

Can we remove the pumping source of diode laser once the lasing action has started or do we need continuous pumping?

12 December 2013 8,237 5 View

If a photon doesn't have mass how can it carry energy?

12 December 2013 7,396 2 View

How is the general theory of relativity related to the 'sagnac effect'?

11 November 2013 782 4 View