| 摘要 |
A method of enhancing laser operating efficiency of a laser ( 50 ) for use in an optical data read and/or write device ( 10 ) is described. The method is distinguished in that it includes steps of: a) generating a pulse excitation signal having one or more sequences of pulses whose pulse frequency is substantially in a range of 50 MHz 250 MHz; and b) arranging for the one or more sequences of pulses to modulate excitation current through the laser ( 50 ), the pulses traversing a lasing threshold of the laser ( 50 ). The method is of benefit in that it is capable of enhancing operating efficiency of the laser ( 50 ), thereby either enabling the laser to be driven to generate more optical output or for reducing temperature rise occurring in the laser ( 50 ) when in operation.
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