OPTIGRATING

[deepak jha]

Hello,

I am new to the forum and I just want the most appropriate answer to my question..

Can anyone tell me the difference between optigrating and fiber bragg grating ? Is there really the difference between the two ? I somewhere read they are the same ?

Thanks and Regards

[deepak jha]

Hi all,

Still looking for replies… Someone please help…

Thanks and regards

[Ankita Sharma]

Hi Deepak,

OptiGrating is a wider (more general) term for optical gratings used in literature. It includes gratings for different waveguides structure (cilindrical, slab, etc.) and gratings with different profiles (fiber Bragg or some other kind)…. I hope this helps

Regards
Ankita

[Kanwarjeet Singh]

Hi Deepak Jha
As far as i understand you have missed a very important understanding difference of the two. Optigrating is a tool while fiber bragg grating is a device that can be used in system design. Although optigrating tool is used to fabricate the grating. I hope this will help you in distinguishing the two.
Thanks

All the best

[nagesh kuknoor]

Hello Deepak,

I agree to most of what Kanwarjeet has said. This is the basic difference in two no need to confuse yourself.

Thank you

[Domail Singh]

Hi kanwarjeet,
I find your answer more apt. Thank you for mentioning the difference. It was worth mentioning.

Regards
Domail

[deepak jha]

Hi Ankita,

Do you mean they are the same ?

Thanks and regards

[Kanwarjeet Singh]

Hi Deepak,
As i told there is a difference between the two so you must understand both are not same. I hope it helps you
Thanks

All the Best

[deepak jha]

Hi Kanwarjeet,

Thanks for the reply.. Will surely look into the details of it…

Regards

[Ankita Sharma]

Hi Deepak,

No they are not the same it has been very rightly said by kanwarjeet that Optigrating is a tool while fiber bragg grating is a device that can be used in system design. Although optigrating tool is used to fabricate the grating..

Regards
Ankita

[FAYIQA NAQSHBANDI]

HELLO DEEPAK JHA..

I completely agree with Kanwarjeet. There is definitely a deifference between the two as mentioned by him..
That shall help you.

with Regards
FAYIQA

[Rajguru M. Mohan]

Hi Deepak,
As we know that Light signals at wavelengths other than the Bragg wavelength, which are not phase matched, are essentially transparent. A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others.
The non-uniform (chirped and apodized) grating is divided into Number of Segments uniform gratings. The coupled mode theory is used to calculate the scattering matrix of each uniform segment, and the spectral response of the whole grating is found by connecting the uniform segments using the transfer matrix theory. The apodization functions are Gaussian and Hyperbolic tangent. The chirp functions which is used as follows:
Linear, Quadratic, Square Root, Cubic Root.

[Kanwarjeet Singh]

Hi Rajguru,
I think he wishes to know the basic difference between the two. I guess you are going for depth.

[deepak jha]

HI all,

Thanks for your responses and providing the valuable information…

Regards

[Kanwarjeet Singh]

you are welcome Deepak. Hope your doubt is clear now about the difference.

Regards

[Rajguru M. Mohan]

Hi,
I also wish to add about optigrating.
OptiGrating uses the Coupled Mode Theory to model the light and enable analysis and synthesis of gratings and conference publications which reference the use of OptiGrating.
Please refer to following links to get more about FBG and grating:
https://optiwave.com/category/products/component-design/optigrating/

Fiber Bragg Grating

http://spie.org/Publications/Proceedings/Paper/10.1117/12.2053091
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1877804
Hope this will help you.

[Kanwarjeet Singh]

Hi Rajguru,
As i mentioned you are going into the detail of implementation. he wished to know the basic difference. I guess he would have got it now.

Regards

[deepak jha]

Hi Rajguru,

Will surely try into the links provided by you…
Thanks for your efforts

Regards

[Ankita Sharma]

Hi Rajguru,

Very valuable information provided by you…

Regards
Ankita

[Kanwarjeet Singh]

Hi Ankita i agree to that but the question was a basic question. It does not need the concepts. I hope you understand.

Regards

[deepak jha]

Hi Kanwarjeet,

Thanks for the information…
All the best

Regards

[Kanwarjeet Singh]

You are welcome deepak.

Regards

[Rajguru M. Mohan]

Hi Deepak,
Fiber Bragg Grating is the application of Optigrating. The link which is depicted below states it.
https://optiwave.com/category/products/component-design/optigrating/optigrating-applications/
A complex grating is approximated by a sequence of uniform segments, and analyzed by connecting the segments with the well-known Transfer Matrix Method.
There are many applications of optigrating are:
WDM add/drop, narrow and broadband fiber and waveguide filters
Fiber Bragg reflectors
EDFA gain flattening elements
Dispersion compensators for fiber communications
Sideband suppression using grating apodization
Fiber and waveguide sensors
Long Period Gratings with coupling to cladding modes

Hope this will help you to understand.

[Kanwarjeet Singh]

Thanks Rajguru for the information but i feel you still did not understand the question. Anyways Thanks for the links and related information.

Regards

[Ankita Sharma]

Hi Rajguru,

Thanks for the information…

Regards
Ankita

[deepak jha]

Hi Rajguru,

I appreciate your efforts and thanks for the concern..
Alll the best..

Thanks and Regards

[nagesh kuknoor]

Hi All,

It should be very clear for Deepak now to see the distinction between the two. it shall have helped him. It was rather a Good discussion. May good points were being discussed yet the question was basic.
Thank you

[shafeen al yasin]

Hi Deepak,
A good discussion it is. I agree with Fayiqa Nagesh Ankita and rajguru. All have made valid points but as kanwarjeet has said that it is a basic query and the aforementioned difference is enough to give you some idea. I hope it will be very helpful to you.

Regards
Shafeen

[Domail Singh]

Hi All
Indeed very informative links provided by Rajguru. a good discussion also.

[jyoti raina]

hi deepak sir..
i agree with kanwarjeet sir..it is the basic difference he has mentioned..try looking for more..

with regards
jyoti

[deepak jha]

Hi all,

Thanks for your efforts… It is really nice that everyone is contributing to your query… Cheers

Regards

[Ankita Sharma]

Hi Deepak,

You are welcome.. You will get the desired help on the forum…

Regards

[nagesh kuknoor]

Hi Deepak,
You are welcome. i hope the information was very helpful.

Regards

[deepak jha]

Hi all,

Thanks and regards once again… Glad for the concern of the forum members…

[jyoti raina]

Hi deeapak sir..you are welcome deepak ..

with regards
jyoti

[Manoj Kumar]

Hi Deepak,

You are welcome…

Regards

[Rahul Tiwari]

Hi all,

Infact a very meaningful discussion..

Regards

[FAYIQA NAQSHBANDI]

HI ALL..

I agree to some points but largely the difference is mentioned by Kanwarjeet in some comments..That must be surly of some help to Deepak.

Regards

[deepak jha]

Hi all,

Thanks everyone for your responses….

[FAYIQA NAQSHBANDI]

HI DEEAPAK..

You are welcome Deepak

Regards

[Author]

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