Semiconductor laser driver circuit

摘要: The larger the number of successive “0”s preceding a “1” in input data applied to semiconductor laser, longer emission delay time laser. Accordingly, if pulse signal for driving laser is made rise earlier by an amount equivalent conforming “0”s, thereby enlarging width, then can be compensated eliminate pattern jitter irrespective “0”s. To accomplish this, unit provided monitoring data, and pulse-width adjustment circuit advancing pulse, based upon data.