Wireless headsets use a modulated infrared beam for very high quality stereo.
Lights don't affect them much.
They use ordinary parts and the schematics are on the internet.
In Google I entered Infrared Headphones Circuit and got some that don't work, some that were very old and used parts that are not made anymore and ads for you to buy them.
There are two circuits that use a CD4046 phase-locked-loop IC for FM modulation of a high frequency. One uses an old RCA amplifier IC that is not made anymore but it can be made with transistors, and the other uses Cmos inverters connected as "linear" amplifiers instead of opamps.
The IR FM receiver circuit you linked to should work pretty well if you replace its cbsolete old CA3237 with a dual high speed opamp. A TL072 might provide enough gain and output for a stereo receiver with one channel at about 60kHz and the other channel at 120kHz. Then I think the transmitter and receiver for each channel must be completely separate.
It will work with a bright IR LED and an IR photo-diode (with a black lens). If they are a visible light laser pointer and a light sensitive photo-diode then it probably won't work in daylight.
How will you focus the laser from the CD? I hope you don't burn your eyes.
well audioguru you let me in the same place: i only undertood the first text...
... with the CD laser diode i was very, extremy careful.. it burm everthing that touch.. i prefer keed under my box of trash...
Make the very simple first circuit. Then you will hear its noise and distortion and see how short is its range.
Make the complicated one if you want it better.
Just connect each opamp in a TL072 as an AC amplifier. Its minimum supply voltage is 7V. At 100kHz each opamp can have a gain of 32. Then the total gain is 1024.