Wavelength to optical power converter and method for converting wavelength into optical power
AssigneeYuan Ze University
InventorsShyh-Lin Tsao, Wen-Ming Cheng
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Abstract
A wavelength to optical power converter and a method for converter a wavelength into an optical power are provided. The wavelength to optical power converter includes an input fiber pigtail for inputting an optical wavelength signal, a spiral fiber connected to the input fiber pigtail, a cylinder for fixing the spiral fiber, an output fiber pigtail extended from the spiral fiber, and an optical detector connected to the output fiber pigtail for reading a signal from the output fiber pigtail to generate the optical power, wherein the spiral fiber outputs the optical power in response to the optical wavelength signal, thereby performing a conversion from the wavelength into the optical power.
Claims26
A wavelength to optical power converter used for monitoring the wavelength and the optical power in a fiber-optic communication system, comprising:
- an input fiber pigtail for inputting an optical wavelength signal;
- a cylinder for fixing said spiral fiber;
- a spiral fiber connected to said input fiber pigtail and wrapped around said fixed radius of said cylinder;
- an output fiber pigtail extended from said spiral fiber;
- and
- an optical detector connected to said output fiber pigtail for reading a signal from said output fiber pigtail to generate said optical power, wherein said fixed radius of said cylinder is smaller than 10 mm when maid optical wavelength signal is in the range between 750 nm and 1300 nm, and said fixed radius of said cylinder is more than 10 mm when said optical wavelength signal is in the range between 1300 nm and 1750 nm, and wherein said spiral fiber outputs said optical power in response to said optical wavelength signal, thereby performing a conversion from said wavelength into said optical power.
A method for converting a wavelength into an optical power used in a wavelength to optical power converter of a fiber-optic communication system, wherein said wavelength to optical power converter includes an input fiber pigtail, a cylinder having a fixed radius, a spiral fiber wrapped around said fixed radius of said cylinder, an output fiber pigtail and an optical detector, comprising the steps of:
- inputting a specific wave-band monochromatic light source to said input fiber pigtail;
- measuring a bending loss of said spiral fiber;
- regulating a specific parameter and calculating a theory curve;
- and
- reading a signal via said optical detector to generate an optical power output signal, wherein said fixed radius of said cylinder is smaller than 10 mm when said optical wavelength signal is in the range between 750 nm and 1300 nm, and said fixed radius of said cylinder is greater than 10 mm when said optical wavelength signal is in the range between 1300 nm and 1750 nm.
A wavelength to optical power converter used for measuring a wavelength, comprising:
- an input fiber pigtail for inputting an optical wavelength signal;
- a cylinder for fixing said spiral fiber;
- a spiral fiber connected to said input fiber pigtail and wrapped around said fixed radius of said cylinder;
- an output fiber pigtail extended from said spiral fiber;
- and
- an optical detector connected to said output fiber pigtail for reading a signal from said output fiber pigtail to generate said optical power, wherein said fixed radius of said cylinder is smaller than 10 mm when said optical wavelength signal is in the range between 750 nm and 1300 nm, and said fixed radius of said cylinder is more than 10 mm when said optical wavelength signal is in the range between 1300 nm and 1750 nm and said spiral fiber outputs said optical power in response to said optical wavelength signal, thereby performing the conversion from said wavelength into said optical power.
Dependencies are inferred from the claim text.