IP Library Granted Patent US 7,336,684
Granted Patent B2
US 7,336,684 · App. 10/902,612 · Granted Feb 26, 2008

Planar multiwavelength optical power supply on a silicon platform

Assignee: Massachusetts Institute of Technology
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,336,684
App. No.
10/902,612
Granted
Feb 26, 2008
Kind
B2
Abstract

A microphotonic light source includes an optical pump and a plurality of waveguides that distribute optical pump power of the optical pump. At least one Erbium-doped laser ring is coupled to at least one of the waveguides so as to match the resonance condition of the optical pump.

Claims (26)

1. A microphotonic light source comprising:

an optical pump;

a plurality of waveguides that distribute optical pump power of said optical pump, said waveguides comprising silicon nitride (Si 3 N 4 ) or silicon oxynitride (SiON) waveguides;

a plurality of Erbium-doped laser ring structures that are coupled to at least one of said waveguides, each of said Erbium-doped laser rings having radial dimensions designed to match the resonance condition for both said optical pump and associated wavelengths, said Erbium-doped laser ring structures comprising Erbium-doped Si 3 N 4 or SiON and having multi-wavelength signal emissions at approximately 1.55 μm; and

a plurality of undoped routing ring structures aligned along a principal waveguide bus to distribute the power from the optical pump to regions comprising said Erbium-doped laser ring structures; wherein

said Erbium-doped laser ring structures and said undoped routing ring structures are of varying dimensions and act as selective pump routers and signal filters.

2. The microphotonic light source of claim 1 , wherein said waveguides comprise silicon nitride Si 3 N 4 .

3. The microphotonic light source of claim 1 , wherein said waveguides comprise silicon oxynitride (SiON).

4. The microphotonic light source of claim 1 , wherein said at least one Erbium-doped laser ring comprises silicon oxynitride (SiON).

5. The microphotonic light source of claim 1 , wherein said at least one Erbium-doped laser ring comprises silicon nitride Si 3 N 4 .

6. The microphotonic light source of claim 1 , wherein said optical pump comprises pump radiation of a 980 nm laser source.

7. The microphotonic light source of claim 1 further comprising a plurality of output planar waveguides that output each laser wavelength generated by said laser rings.

8. The microphotonic light source of claim 1 further comprising a plurality of output filter waveguides.

9. A method of forming a microphotonic light source comprising:

providing an optical pump;

providing a plurality of waveguides that distribute optical pump power of said optical pump, said waveguides comprising silicon nitride (Si 3 N 4 ) or silicon oxynitride (SiON) waveguides; and

providing a plurality of Erbium-doped laser ring structures that are coupled to at least one of said waveguides, each of said Erbium-doped laser ring structures having radial dimensions designed to match the resonance condition for both said optical pump and associated wavelengths, said Erbium-doped laser ring structures comprising Erbium-doped Si 3 N 4 or SiON and having multi-wavelength signal emissions at approximately 1.55 μm; and

providing a plurality of undoped routing ring structures aligned along a principal waveguide bus to distribute the power from said optical pump to regions comprising said Erbium-doped laser ring structures; wherein

said Erbium-doped laser ring structures and said undoped routing ring structures are of varying dimensions and act as selective pump routers and signal filters.

10. The method of claim 9 , wherein said waveguides comprise silicon nitride Si 3 N 4 .

11. The method of claim 9 , wherein said waveguides comprise silicon oxynitride (SiON).

12. The method of claim 9 , wherein said at least one Erbium-doped laser ring comprises silicon oxynitride (SiON).

13. The method of claim 9 , wherein said at least one Erbium-doped laser ring comprises silicon nitride Si 3 N 4 .

14. The method of claim 9 , wherein said optical pump comprises pump radiation of a 980 nm laser source.

15. The method of claim 9 further comprising providing a plurality of output planar waveguides that output each laser wavelength generated by said laser rings.

16. The method of claim 9 further comprising providing a plurality of output filter waveguides.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2004
From: SPARACIN, DANIEL K.; NEGRO, LUCA DAL; SAINI, SAJAN; KIMERLING, LIONEL C.
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 016031/0766 →
Continuity (2)
Provisional Application 6049177800 · Aug 1, 2003
Related Publication 20050063426A1 · Mar 24, 2005