Adjustable-wavelength emitter for TWDM-PON and light network path unit
A technology of TWDM-PON and transmitter, which is applied in the field of optical network, can solve the problems that the modulation rate cannot reach 10Gb/s, limit the uplink speed of the optical network unit, and the wavelength tuning range is small, so as to reduce the manufacturing cost and complicate the system structure degree of effect
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[0039] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not limiting, and the scope of the invention is defined by the appended claims.
[0040] According to a first aspect of the present invention, a wavelength-tunable transmitter 100 for TWDM-PON with symmetrical bandwidth is proposed, which includes:
[0041] A multimode transmitter 110, which outputs an optical signal comprising a plurality of longitudinal modes;
[0042] An optical circulator...
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