LED working at 120 MHz

We would like to drive Infrared LEDs with a 120 MHz signal. However, we are not sure what type of LEDs can be driven at such a high frequency. What kind of a parameter should we look for in the datasheet of the LEDs to determine whether they will work at 120 MHz. In datasheets, the bandwidth of the LED is not usually specified, so we couldn't be sure.
Also, can you recommend us some IR LEDs (specifically 600-900 nm wavelength LEDs, near-infrared region) that can work at 120 MHz?

Thanks a lot.

LEDs usually spec rise time and fall time. 120MHz is awfully fast for LEDs. You may have to look at fiber optic laser transmitters.

600 nm is not IR.

I think you would be better off with a laser. Use a DC bias about half-way between the current at which it starts lasing and the maximum permissible current. Use a bias-T to apply the RF. I've done this to 500 MHz with pretty common/cheap laser diodes.

Dave