Reflector for use in laser architecture
AssigneesCompoundtek Pte. Ltd., Nanyang Technological University
InventorsJia Xu BRIAN SIA, Hong WANG, Kian Siong ANG
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Abstract
The present invention relates to a reflector (300) for laser architecture. The reflector (300) includes a coupling section (310) formed of waveguides and including three ports (302-306) and a loop section (310) formed of a waveguide and optically coupled to the coupling section (310). The reflector (300) is an ultra-broadband on-chip laser coupling section reflector or an ultra-broadband coupling section laser reflector and is operable in an O band, C band or L band.
Claims10
A reflector (300) for use in a laser architecture, comprises:
- i. a coupling section (310) formed of waveguides and including a first port (302), a second port (304) and a third port (306);
- and
- ii. a loop section (312) formed of at least one waveguide and optically coupled to the coupling section (310),
- characterized in that the coupling section (310) is configured as a trident, such that a first coupling gap (308a) is formed between the first port (302) and the second port (304) and a second coupling gap (308b) is formed between the first port (302) and the third port (306), wherein the first coupling gap (308a) and the second coupling gap (308a) are symmetric,
- wherein the first port (302) is configured to split a light wave exiting the first port (302) and symmetrically input the split light waves into the second port (304) and the third port (306), such that each split light wave entering through one of the second port (304) and the third port (306) travels along the loop section (312), exits through other of the second port (304) and the third port (306) and recombines with the other split light wave at the first port (302).
A reflector (900) for use in a laser architecture, comprising:
- i. a first coupling section (910) formed of waveguides and including a first port (902), a second port (904) and a third port (906);
- ii. a second coupling section (912) formed of waveguides and including a first port (914), a second port (916) and a third port (918);
- iii. a loop section (920) formed of a waveguide and optically coupled to the second coupling section (912),
- characterized in that:
- in the first coupling section (910), the first port (902) and the second port (904) form a first spaced coupling gap (908a) and the first port (902) and the third port (906) form a second spaced coupling gap (908b), wherein the first spaced coupling gap (908a) and the second spaced coupling gap (908b) are asymmetrical;
- in the second coupling section (912), the first port (914) and the second port (916) form a first spaced coupling gap (908c) and the first port (914) and the third port (918) form a second spaced coupling gap (908d), wherein the first spaced coupling gap (908c) and the second spaced coupling gap (908d) are symmetrical, wherein the first port (914) of the second coupling section (912) is optically coupled to the third port (906) of the first coupling section (912).
Dependencies are inferred from the claim text.