1MHz+ PWM High Power LED

Hello, I'm looking for a high power led driver that can be PWM'd up to 1MHz(ish). Wanted to blink it really fast to do some communication between other end point (lify).

Can someone please help me on this?

What's the LED you are driving? 20,000mCD LEDs can be PWMed with simple transistor driver. These are blindingly bright: http://www.dipmicro.com/store/LED5W

For starters, this