Claims
- 1. An optical power monitor comprising:
a collimating means for collimating an incident light into a collimated beam; and a beam splitter/tapping means for transmitting a tapped portion of said collimated beam therethrough for measuring and monitoring an optical power wherein said beam splitter/tapping means comprising a splitter/tapping layer coated onto said collimating means.
- 2. The optical power monitor of claim 1 further comprising:
a dual fiber ferrule having an input optical port for receiving an incident optical beam to project to said collimating means, said dual fiber ferrule further having an output optical port for receiving an output optical beam reflected from said splitter/tapping means.
- 3. The optical power monitor of claim 1 further comprising:
an optical signal detecting means for receiving said tapped portion of said collimated beam from said beam splitting/tapping layer for detecting an optical intensity.
- 4. The optical power monitor of claim 3 wherein:
said optical signal detecting means further includes a focal lens for focusing said tapped portion of said collimated beam onto a photodiode for detecting an optical intensity.
- 5. The optical power monitor of claim 2 further comprising:
a first holding tube for holding said dual fiber ferrule and a second holding tube for holding said collimating means wherein said first holding tube and second holding tubes having a lateral position adjustment gap for minimizing an optical loss of said output optical beam reflected from said splitter/tapping means.
- 6. The optical power monitor of claim 3 further comprising:
a third holding tube for holing said collimating means and said optical signal detecting means for securely fixing a relative position therein.
- 7. The optical power monitor of claim 4 further comprising:
a third holding tube for holing said collimating means and said optical signal detecting means for securely fixing a relative position therein; and a seal housing for sealing a rear opening of said third holding tube opposite said collimating means wherein said seal housing holds said focal lens and said photodiode at fixed positions for plugging and sealing said rear opening and placing said focal lens substantially at an optimal position relative to said splitting/tapping layer.
- 8. The optical power monitor of claim 4 wherein:
said focal lens is a silica ball lens.
- 9. The optical power monitor of claim 4 wherein:
said focal lens is an aspherical lens.
- 10. The optical power monitor of claim 2 wherein:
said collimating means is a GRIN lens having an inclined lens surface relative to a main optical axis of said GRIN lens and said inclined lens surface facing a parallel ferrule surface of said dual fiber ferrule wherein said lens surface is disposed at a gap-distance from said parallel ferrule surface for achieving a focus optimization.
- 11. A method for monitoring an optical power comprising:
employing a collimating means for collimating an incident light into a collimated beam; and coating a splitter/tapping layer onto said collimating means for transmitting a tapped portion of said collimated beam therethrough for measuring and monitoring an optical power.
- 12. The method of claim 11 further comprising:
receiving said incident optical beam through an input optical port of a dual fiber ferrule for projecting to said collimating means and receiving an output optical beam reflected from said splitter/tapping layer through an output optical port of said dual fiber ferrule.
- 13. The method of claim 11 further comprising:
receiving said tapped portion of said collimated beam from said beam splitting/tapping layer into an optical signal detecting means for detecting an optical intensity.
- 14. The method of claim 13 wherein:
said step of receiving tapped portion of said collimated beam into said optical signal detecting means further includes a step of receiving said tapped portion of said collimated beam into focal lens for focusing said tapped portion of said collimated beam onto a photodiode for detecting an optical intensity.
- 15. The method of claim 12 further comprising:
employing a first holding tube for holding said dual fiber ferrule and employing a second holding tube for holding said collimating means; and adjusting a lateral positions of said first holding tube and second holding tubes for minimizing an optical loss of said output optical beam reflected from said splitter/tapping means.
- 16. The method of claim 13 further comprising:
employing a third holding tube for holing said collimating means and said optical signal detecting means for securely fixing a relative position therein.
- 17. The method of claim 14 further comprising:
employing a third holding tube for holing said collimating means and said optical signal detecting means for securely fixing a relative position therein; and employing a seal housing for sealing a rear opening of said third holding tube opposite said collimating means and holding said focal lens and said photodiode in said seal housing at fixed positions for plugging and sealing said rear opening and placing said focal lens substantially at an optimal position relative to said splitting/tapping layer.
- 18. The method of claim 4 wherein:
said step of receiving said tapped portion of said collimated beam into a focal lens is a step of receiving said tapped portion into a silica ball lens.
- 19. The method of claim 4 wherein:
said step of receiving said tapped portion of said collimated beam into a focal lens is a step of receiving said tapped portion into an aspherical lens.
- 20. The method of claim 2 wherein:
said step of employing said collimating means is a step of employing a GRIN lens having an inclined lens surface relative to a main optical axis of said GRIN lens for facing a parallel ferrule surface of said dual fiber ferrule; and disposing said lens surface at a gap-distance from said parallel ferrule surface for achieving a focus optimization.
- 21. A method of monitoring an optical power comprising:
employing a collimating and tapping means for tapping a tapped portion of an optical signal to a focusing and detecting means for detecting said tapped portion of said optical signal; employing a holding tube for securely holding and fixing said collimating and taping means at a fixed relative position from said focusing and detecting means; and employing a seal housing for sealing a rear opening of said holding tube opposite said collimating and tapping means and holding said focusing and detecting means in said seal housing for plugging and sealing said rear opening and placing at an optimal position relative to said collimating and tapping means.
- 22. A seal housing for searing a rear tube opening of a holding tube comprising:
At least two optical components held by said seal housing at fixed positions for plugging and sealing said rear tube opening provided to proper function with a third optical component inserting from a front tube opening opposite said rear tube opening.
- 23. The seal housing of claim 22 wherein:
said seal housing holding a focus lens and a photo-sensor at fixed positions.
- 24. The seal housing of claim 23 wherein:
said holding tube is provided for holding a GRIN lens placed therein from a front opening of said holding tube.
Parent Case Info
[0001] This Formal Application claims a Priority Date of Mar. 15, 2002 benefited from a Provisional Application 60/364,983 filed by the same Applicant of this Application on Mar. 15, 2002.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60364983 |
Mar 2002 |
US |