Optical spectral filtering and dispersion control for wavelength multiplexed laser sources using fiber bragg gratings

An apparatus, comprising:

• a laser diode, wherein said laser diode comprises a first end and a second end opposite said first end;
• an optical fiber connected to said second end of said laser diode, wherein said optical fiber comprises a first end and a second end opposite said first end, wherein said first end of said optical fiber is connected to said second end of said laser diode, and wherein said second end of said optical fiber comprises a reflective surface;
• and
• a filter within said optical fiber, wherein said filter comprises a plurality of filter cores comprising differing refractive indexes.

An apparatus, comprising:

• a laser diode;
• an optical fiber connected to said laser diode, wherein said optical fiber comprises a first end and a second end opposite said first end, wherein said first end of said optical fiber is connected to said laser diode, and wherein said second end of said optical fiber comprises a reflective surface;
• a filter within said optical fiber, wherein said filter comprises a plurality of filter cores comprising differing refractive indexes;
• a filtering controller operatively connected to said optical fiber;
• and
• an optical sensor operatively connected to said filtering controller,
• wherein said optical sensor comprises a wavelength monitor, an analysis engine, and a feedback transmitter.

An apparatus, comprising:

• a laser diode, wherein said laser diode comprises a first end and a second end opposite said first end;
• an optical fiber connected to said second end of said laser diode, wherein said optical fiber comprises a first end and a second end opposite said first end, wherein said first end of said optical fiber is connected to said second end of said laser diode, and wherein said second end of said optical fiber comprises a reflective surface;
• a filter within said optical fiber, wherein said filter comprises a plurality of filter cores comprising differing refractive indexes;
• a filtering controller operatively connected to said optical fiber;
• and
• an optical sensor operatively connected to said filtering controller,
• wherein said optical sensor comprises a wavelength monitor, an analysis engine, and a feedback transmitter.

An apparatus, comprising:

• a laser diode, wherein said laser diode comprises a first end and a second end opposite said first end, wherein said first end comprises a first semi-transparent portion, and wherein said second end comprises a second semi-transparent portion;
• an optical fiber adjacent to said second end of said laser diode, wherein said optical fiber comprises a first end and a second end opposite said first end, wherein said first end of said optical fiber is adjacent to said second end of said laser diode, wherein said second end of said optical fiber comprises a reflective surface, and wherein said optical fiber is separated from said laser diode by an air gap;
• a filter within said optical fiber, wherein said filter comprises a plurality of filter cores comprising differing refractive indexes;
• a filtering controller operatively connected to said optical fiber;
• and
• an optical sensor operatively connected to said filtering controller,
• wherein said optical sensor comprises a wavelength monitor, an analysis engine, and a feedback transmitter.