All Questions
Tagged with photonics non-linear-optics
15
questions
3
votes
4
answers
275
views
Can there be two different physical units (or dimensions) for a same physical quantity?
I was going through this book "Nonlinear optics" by Robert W. Boyd for my postgraduate subject in Nonlinear optics and I came across the different orders of nonlinear susceptibilities. From ...
- 31
1
vote
0
answers
47
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Are there any nonlinear crystals or other transparent materials that can produce anti-Stokes, phase matched, frequency shift of laser light?
While some nonlinear crystals can convert incoming laser light into harmonics, thus for example doubling the light frequency, are there any crystals or other transparent materials that can reduce the ...
- 240
1
vote
0
answers
76
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Non-Linear Crystals (BBO) splitting photons
So from what I've studied till now about Photon Entanglement is that when we input a photon of a particular wavelength ($\lambda$) into a BBO crystal (a non linear $\chi^2$ crystal), it has a ...
2
votes
0
answers
38
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Relation between polarization and susceptibility for nonlinear processes
I've been confused about this for a while--
Boyd mentions that the second order polarization is related to second order optical susceptibility as $P_i(\omega_m + \omega_n) = \epsilon_0\sum_{(mn)}\chi_{...
- 21
0
votes
0
answers
39
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Formation of optical solitons in microresonators
Optical soliton formation in laser systems with devices that facilitate mode-locking such as a saturable absorber help me understand why solitons form in the first place.
However, when one considers a ...
- 484
0
votes
0
answers
77
views
How to creat a squeezed-state light in integrated-photonic devices
I am interested in studying (squeezed-state light in integrated-photonic devices by means of four-wave mixing). I would like to be completely familiar with the working method and all the devices that ...
- 65
0
votes
1
answer
55
views
Effects of nonlinearity and dispersion on a pulse
I have some basic doubts on Nonlinear and dispersion effects on a pulse.
How does a pulse shape change in temporal domain when passed through:
nonlinear medium with strong $X^2$ effect
nonlinear and ...
- 393
0
votes
0
answers
34
views
Why does non-linearity come into picture only at a large intensity of optical fields?
I have read that for sufficiently large intensities of optical fields (of the order of $10^8$), we can actually observe a non-linear relationship between the polarization and the field, given as
$$\...
- 295
3
votes
0
answers
202
views
Why do we get rings in the Spontaneous Parametric Down conversion (SPDC) process?
In the SPDC process, the phase-matching conditions between the o-rays and/or e-rays have to hold for the down-conversion process to take place. Say we have a non-collinear phase-matching at the plane ...
- 195
2
votes
0
answers
109
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What are the factors that decide which type of SPDC (Type I or II) occurs in a Non-Linear Crystal?
I have been reading through some literature on the theory of Spontaneous Parametric Down conversion (SPDC), their types, the phase-matching condition, etc. To my understanding, the downconverted ...
- 195
2
votes
1
answer
127
views
Squeezed quantum states of light
I am a beginner in quantum optics and started from reading the Fox's book. I got to Ch.7, where there is a discussion about the amplitude-squeezed states. I am really puzzled by the effect of phase ...
- 1,184
0
votes
1
answer
153
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Does self-phase modulation generate new frequency components?
Not a physicist. Hope to clarify some conceptual issues I have with non-linear propagation of light through a medium, since I seem to be mixing up some very fundamental concepts. Specifically, I am ...
0
votes
0
answers
85
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Is it possible to solve those differential equations (with complex numbers)?
I'm trying to solve this equation, I don't know where to begin with. Is it feasible ? If so how should I solve it ?
https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-20-7-7454&id=230426
https:/...
1
vote
2
answers
76
views
Do the results of this laser experiment demonstrate nonlinear optical phenomenon?
In my photonics class, we conducted an experiment to observe the Beer-Lambert law and the effects of filters(absorption, transmittance, and reflection). We shined a red(632nm) 5mW Helium-Neon laser ...
- 439
2
votes
3
answers
369
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Frequency Chirp, Instantaneous Frequency and Photons
I understand ideas coming from Optics, such as the concept of frequency chirp and instantaneous frequency, and their use in nonlinear optics. However, I am struggling in giving them an intuitive ...
- 1,764