Monolithic Fiber Couplers for Single Emitters

The fiber couplers allow a direct diode fiber coupling of single emitters with only one lens element. The couplers consist of a monolithic glass block with two opposite crossed cylindrical surfaces and passive alignment edges. The light of the fast and slow axes is collimated by one cylindrical lens to produce a symmetrical focus.

Emitter size [µm]Ø Fiber [µm]Typical coupling efficiency [%]
< 100100> 90
< 100 (TO can)200> 85
< 200 (TO can)200> 80

Monolithic fiber coupler for mini-bars

Coupling the light of multiple emitters, bars or mini-bars into an optical fibre generally requires complex optical systems with a variety of components. LIMO has developed a unique cost-effective optical solution for mini-bars which consists of one single component only.

Emitter size [µm]Ø Fiber [µm]Typical coupling efficiency [%]
< 100600> 90

Couplers for Blue Diode Lasers (Single Emitter)

The compact couplers of LIMO allow a direct diode fiber coupling of single emitters with only one lens element. The couplers can be used for blue diode lasers with a wavelength between 420nm and 470nm which will be applied in laser material processing and for pumping of lasers.

Emitter Größe [µm]Ø Spotgröße [µm]typische Kopplungseffizienz [%]
14 x 2 (TO can)15 +/-5> 90

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