Optical device driving circuit, optical component and electronic equipment

Abstract

Disclosed are an optical device driving circuit, an optical component and electronic equipment. The driving circuit comprises: a first current generation module comprising a current generation unit and a driving unit, wherein the current generation unit is connected with the driving unit, the input end of the driving unit receives an input signal, the output end is connected with an external optical device, and the driving unit is used for controlling the driving unit to be conducted according to the input signal so as to output the first current generated by the current generation unit to an external optical device; a second current generation module, which is connected with the output end of the driving unit and is used for providing second current; and an optical device driving circuit, wherein a driving current output by the optical device driving circuit is a superposition sum of a first current and a second current, the first current is an alternating current modulation current, and the second current is a DC bias current. The second current generation module is added to provide the second current, so that the driving current output by the optical device driving circuit is the superposition sum of the first current and the second current, and the driving current value output to the laser is increased.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to an optical device driving circuit, an optical component and an electronic device. Background technique [0002] In order to reduce the cost, the high-speed optical module of optical communication often adopts the form of chip on board package (chip on board), and the laser driver and laser are directly attached to the PCB (printed circuit board) board, and then directly Connect the laser driver to the laser. Such as figure 1 As shown, the output pins OUTP and OUTN of the laser driver are directly connected to the positive and negative poles of the laser D0 through two bonding wires, and the inductors L1 and L2 are the parasitic inductances of the bonding wires. [0003] Due to the internal area and process limitations of the laser driver, the laser driver cannot integrate a capacitor with a relatively large capacitance, so the laser driver and the laser cannot use...

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