BROADBAND TUNABLE RAMAN-EFFECT DEVICES IN OPTICAL FIBERS

• US 3,705,992 A
• Filed: 12/13/1971
• Issued: 12/12/1972
• Est. Priority Date: 12/13/1971
• Status: Expired due to Term

• Current Assignee: Chandra Kumar Naranbhai Patel, Ippen Erich Peter, Stolen Rogers Hall
• Original Assignee: Chandra Kumar Naranbhai Patel, Ippen Erich Peter, Stolen Rogers Hall
• Inventors: IPPEN ERICH PETER, PATEL CHANDRA KUMAR NARANBHAI, STOLEN ROGERS HALL
• Application Number:
  US05/207,030
• Time in Patent Office: 365 Days
• US Class Current: 359/327
• CPC Class Codes: H01S 3/302 in an optical fibre

Abstract

STIMULATED RAMAN EMISSION IN THE VISIBLE HAS BEEN OBSERVED IN GLASS-FIBER OPTICAL WAVEGUIDES. EVEN THROUGH THE RAMAN CROSS SECTION IS QUITE SMALL, RELATIVELY LOW THRESHOLD FOR RAMAN EMISSION CAN BE ACHIEVED BECAUSE HIGH OPTICAL POWER DENSITIES ARE MAINTAINED OVER LONG LENGTHS OF WAVEGUIDE. THE BROAD STIMULATED GAIN BRANDWIDTHS AVAILABLE IN GLASS SHOULD PERMIT THE CONSTRUCTION OF WIDEBAND FIBER AMPLIFERS AND RAMAN OSCILLATORS TURNABLE OVER A RANGE OF ABOUT 100 ANGSTROMS.

Claims