Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Do photodiode in different wavelength affect circuit design?

Status
Not open for further replies.
wylee

wylee

Full Member level 1
Joined
Feb 17, 2004
Messages
98
Helped
6
Reputation
12
Reaction score
3
Trophy points
1,288
Location
Malaysia
Activity points
1,031
Currently I am designinig a transimpedance amplifier (TIA) for my project...

I would like to know, is there any difference in electrical design if I were to use a PIN photodiode designed for 1310nm OR 1550nm wavelength?

Does wavelength matters in circuit design?

My personal 'guess' would be NO, because photodiode is just a conversion medium between optical signals to electrical signals (O/E), it does not affect any other properties in circuit design. But I would like to hear more opinions....
 

Re: Do photodiode in different wavelength affect circuit des

Your guess is correct. From your side it really doesn't matter if you transmit (and receive) on 1310nm or 1550nm ..
Regards,
IanP
 

Re: Do photodiode in different wavelength affect circuit des

Yes, The circuit needn't change, because

in both case, The circuit see same thing.

best regards




wylee said:
Currently I am designinig a transimpedance amplifier (TIA) for my project...

I would like to know, is there any difference in electrical design if I were to use a PIN photodiode designed for 1310nm OR 1550nm wavelength?

Does wavelength matters in circuit design?

My personal 'guess' would be NO, because photodiode is just a conversion medium between optical signals to electrical signals (O/E), it does not affect any other properties in circuit design. But I would like to hear more opinions....
Click to expand...
 

Re: Do photodiode in different wavelength affect circuit des

That dosen't matter. The difference is only the responsivity different in different wavelength,e.g, 0.85A/W@1310nm, -.95A/W@1550nm.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top