APPARATUS FOR MONITORING OPTICAL SIGNAL

• US 20160216446A1
• Filed: 01/25/2016
• Published: 07/28/2016
• Est. Priority Date: 01/28/2015
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: KANG, Sae Kyoung, PARK, Heuk, LEE, Sang Soo
• Application Number:
  US15/005,159
• Publication Number:
  US 20160216446A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02B 2006/12107 Grating
• CPC Class Codes: G02B 2006/12123 Diode
• CPC Class Codes: G02B 2006/12126 Light absorber
• CPC Class Codes: G02B 6/12004 Combinations of two or more optical elements
• CPC Class Codes: G02B 6/4291 by accessing the evanescent field of the light guide

Abstract

An apparatus for monitoring an optical signal includes a light absorbing layer formed on an optical waveguide consisting of a core layer and upper and lower cladding layers; and a photodiode comprising electrodes arranged on both the optical waveguide and the light absorbing layer.

Claims

1. An apparatus for monitoring an optical signal, comprising:

a light absorbing layer formed on an optical waveguide consisting of a core layer and upper and lower cladding layers; and

a photodiode comprising electrodes arranged on both the optical waveguide and the light absorbing layer.

2. The apparatus of claim 1, wherein the electrodes of photodiode are arranged on the light absorbing layer and the core layer of the optical waveguide and formed by an ion doping technique.

3. The apparatus of claim 1, wherein the electrodes of the photodiode are formed perpendicular to a direction along which an optical signal travels.

4. The apparatus of claim 1, wherein the electrodes of the photodiode are formed parallel to a direction along which an optical signal travels.

5. The apparatus of claim 1, wherein both ends of the light absorbing layer are tapered.

6. The apparatus of claim 1, wherein the light absorbing layer is formed on the core layer of the optical waveguide.

7. The apparatus of claim 1, wherein the light absorbing layer is formed on the cladding layer of the optical waveguide and spaced apart from the core layer of the optical waveguide by a predetermined gap (GmPD).

8. The apparatus of claim 1, wherein the core layer of the optical waveguide has grating added thereon.

9. A apparatus for monitoring an optical signal, comprising:

a light absorbing layer formed on an optical waveguide consisting of a core layer and upper and lower cladding layers; and

a photodiode comprising electrodes arranged on the light absorbing layer.

10. The apparatus of claim 9, wherein the electrodes of photodiode are formed by an ion doping technique.

11. The apparatus of claim 9, wherein the photodiode are formed perpendicular to a direction along which an optical signal travels.

12. The apparatus of claim 9, wherein the electrodes of the photodiode are formed parallel to a direction along which an optical signal travels.

13. The apparatus of claim 9, wherein both ends of the light absorbing layer are tapered.

14. The apparatus of claim 9, wherein the light absorbing layer is formed on the core layer of the optical waveguide.

15. The apparatus of claim 9, wherein the light absorbing layer is formed on the cladding layer of the optical waveguide and spaced apart from the core layer of the optical waveguide by a predetermined gap (GmPD).

16. The apparatus of claim 9, wherein the core layer of the optical waveguide has grating added thereon.