Narrowband wavelength-selective directional couplers made of dissimilar single-mode fibers

1987 ◽  
Author(s):  
R. ZENGERLE ◽  
O. LEMINGER
Keyword(s):  
Single Mode ◽  
Directional Couplers

scholarly journals Femtosecond Laser Written Depressed-Cladding Waveguide 2 × 2, 1 × 2 and 3 × 3 Directional Couplers in Tm3+:YAG Crystal

Micromachines ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 1 ◽  
Author(s):  
Nikolay Skryabin ◽  
Alexander Kalinkin ◽  
Ivan Dyakonov ◽  
Sergei Kulik
Keyword(s):  
Femtosecond Laser ◽  
Single Mode ◽  
Integrated Photonics ◽  
Beam Splitting ◽  
Directional Couplers ◽  
Laser Writing

Ion-doped crystal-based compact devices capable of beam splitting and coupling are enthralling for a broad range of classical and quantum integrated photonics applications. In this work, we report on the fabrication of depressed-cladding waveguide 2D 2 × 2, 1 × 2 and 3D 3 × 3 directional couplers in Tm 3 + :YAG crystal by femtosecond laser writing. The performances of the couplers are characterized at 810 nm, showing single-mode guidance, polarization independence, finely matched splitting ratios. These results open up new opportunities in the beneficial fabrication of 3D circuits and devices in crystals.

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