IP Library Granted Patent US 6,870,868
Granted Patent B2
US 6,870,868 · App. 10/368,164 · Granted Mar 22, 2005

Organic laser having improved linearity

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Quick Facts
Patent No.
US 6,870,868
App. No.
10/368,164
Granted
Mar 22, 2005
Kind
B2
Abstract

An organic vertical cavity laser device includes a substrate; a bottom dielectric stack reflective to light over a predetermined range of wavelengths and being disposed over the substrate, and an organic active region for producing laser light. The device also includes a top dielectric stack spaced from the bottom dielectric stack and reflective to light over a predetermined range of wavelengths, and a thermally conductive transparent layer disposed between the bottom dielectric stack and the organic active region or between the top dielectric stack and the organic active region or both.

Claims (26)

1. An organic vertical cavity laser device, comprising:

a) a substrate;

b) a bottom dielectric stack reflective to light over a predetermined range of wavelengths and being disposed over the substrate;

c) an organic active region for producing laser light;

d) a top dielectric stack spaced from the bottom dielectric stack and reflective to light over a predetermined range of wavelengths; and

e) a thermally conductive transparent layer disposed between the bottom dielectric stack and the organic active region or between the top dielectric stack and the organic active region or both;

f) and the organic active region includes one or more periodic gain region(s) and spacer layers disposed on either side of the periodic gain region(s) and arranged so that the periodic gain region(s) is aligned with the antinodes of the device's standing wave electromagnetic field.

2. The organic vertical cavity laser device of claim 1 wherein pump-beam light is transmitted and introduced into the organic active region through at least one of the dielectric stacks.

3. The organic vertical cavity laser device of claim 1 wherein one or more periodic gain region(s) is a combination of a host material and a dopant and the spacer layers are substantially transparent to pump-beam light and laser light and are thermally conductive or non-thermally conductive.

4. The organic vertical cavity laser device of claim 1 wherein the thermally conductive transparent layer includes diamond-like carbon or silicon carbide.

5. The organic vertical cavity laser device of claim 3 wherein each of the spacer layers includes diamond-like carbon or silicon carbide.

6. An organic vertical cavity laser array device, comprising:

a) a substrate;

b) a bottom dielectric stack reflective to light over a predetermined range of wavelengths and being disposed over the substrate;

c) an organic active region for producing laser light;

d) a top dielectric stack spaced from the bottom dielectric stack and reflective to light over a predetermined range of wavelengths;

e) a thermally conductive transparent layer disposed between the bottom dielectric stack and the organic active region or between the top dielectric stack and the organic active region or both; and

f) an etched region formed in a surface of the bottom dielectric stack to define an array of spaced laser pixels which have higher reflectance than the interpixel regions so that the array emits coherent phase-locked laser light.

g) and the organic active region includes one or more periodic gain region(s) and spacer layers disposed on either side of the periodic gain region(s) and arranged so that the periodic gain region(s) is aligned with the of the antinodes of the device's standing wave electromagnetic field.

7. The organic vertical cavity laser array device of claim 6 wherein pump-beam light is transmitted and introduced into the organic active region through at least one of the dielectric stacks.

8. The organic vertical cavity laser array device of claim 6 wherein one or more periodic gain region(s) is a combination of a host material and a dopant and the spacer layers are substantially transparent to pump-beam light and laser light and are thermally conductive or non-thermally conductive.

9. The organic vertical cavity laser array device of claim 6 wherein the spacing between pixels is in the range of 0.25 to 4 microns.

10. The organic vertical cavity laser array device of claim 6 wherein the pixels are arranged in a linear array.

11. The organic vertical cavity laser array device of claim 6 wherein the pixels are arranged in a two-dimensional square array.

12. The organic vertical cavity laser array device of claim 6 wherein the thermally conductive transparent layer includes diamond-like carbon or silicon carbide.

13. The organic vertical cavity laser array device of claim 8 wherein each of the spacer layers includes diamond-like carbon or silicon carbide.

Assignments (12)
NOTICE OF SECURITY INTERESTS Recorded Mar 4, 2021
From: EASTMAN KODAK COMPANY
To: BANK OF AMERICA, N.A., AS AGENT
Reel/Frame 056984/0001 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Mar 4, 2021
From: EASTMAN KODAK COMPANY
To: ALTER DOMUS (US) LLC
Reel/Frame 056734/0233 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Mar 4, 2021
From: EASTMAN KODAK COMPANY
To: ALTER DOMUS (US) LLC
Reel/Frame 056734/0001 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Mar 4, 2021
From: EASTMAN KODAK COMPANY
To: ALTER DOMUS (US) LLC
Reel/Frame 056733/0681 →
RELEASE OF SECURITY INTEREST Recorded Jan 24, 2020
From: BARCLAYS BANK PLC
To: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC INC.; KODAK (NEAR EAST) INC.; KODAK AMERICAS LTD.; KODAK REALTY INC.; LASER PACIFIC MEDIA CORPORATION; QUALEX INC.; KODAK PHILIPPINES LTD.; NPEC INC.
Reel/Frame 052773/0001 →
RELEASE OF SECURITY INTEREST Recorded Jul 22, 2019
From: JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC, INC.; KODAK (NEAR EAST), INC.; KODAK AMERICAS, LTD.; KODAK IMAGING NETWORK, INC.; KODAK PORTUGUESA LIMITED; KODAK REALTY, INC.; LASER PACIFIC MEDIA CORPORATION; PAKON, INC.; QUALEX, INC.; KODAK PHILIPPINES, LTD.; NPEC, INC.; CREO MANUFACTURING AMERICA LLC; KODAK AVIATION LEASING LLC
Reel/Frame 049814/0001 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (ABL) Recorded Sep 5, 2013
From: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC INC.; KODAK (NEAR EAST), INC.; KODAK AMERICAS, LTD.; KODAK IMAGING NETWORK, INC.; KODAK PORTUGUESA LIMITED; KODAK REALTY, INC.; LASER-PACIFIC MEDIA CORPORATION; PAKON, INC.; QUALEX INC.; KODAK PHILIPPINES, LTD.; NPEC INC.; CREO MANUFACTURING AMERICA LLC; KODAK AVIATION LEASING LLC
To: BANK OF AMERICA N.A., AS AGENT
Reel/Frame 031162/0117 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (SECOND LIEN) Recorded Sep 5, 2013
From: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC INC.; KODAK (NEAR EAST), INC.; KODAK AMERICAS, LTD.; KODAK IMAGING NETWORK, INC.; KODAK PORTUGUESA LIMITED; KODAK REALTY, INC.; LASER-PACIFIC MEDIA CORPORATION; PAKON, INC.; QUALEX INC.; KODAK PHILIPPINES, LTD.; NPEC INC.; CREO MANUFACTURING AMERICA LLC; KODAK AVIATION LEASING LLC
To: BARCLAYS BANK PLC, AS ADMINISTRATIVE AGENT
Reel/Frame 031159/0001 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST LIEN) Recorded Sep 5, 2013
From: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC INC.; KODAK (NEAR EAST), INC.; KODAK IMAGING NETWORK, INC.; KODAK PORTUGUESA LIMITED; KODAK REALTY, INC.; LASER-PACIFIC MEDIA CORPORATION; PAKON, INC.; QUALEX INC.; KODAK PHILIPPINES, LTD.; NPEC INC.; CREO MANUFACTURING AMERICA LLC; KODAK AVIATION LEASING LLC; KODAK AMERICAS, LTD.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE
Reel/Frame 031158/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Sep 5, 2013
From: CITICORP NORTH AMERICA, INC., AS SENIOR DIP AGENT; WILMINGTON TRUST, NATIONAL ASSOCIATION, AS JUNIOR DIP AGENT
To: EASTMAN KODAK COMPANY; PAKON, INC.
Reel/Frame 031157/0451 →
PATENT SECURITY AGREEMENT Recorded Apr 1, 2013
From: EASTMAN KODAK COMPANY; PAKON, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 030122/0235 →
SECURITY INTEREST Recorded Feb 21, 2012
From: EASTMAN KODAK COMPANY; PAKON, INC.
To: CITICORP NORTH AMERICA, INC., AS AGENT
Reel/Frame 028201/0420 →