Abstract
This letter presents a patented method to align single- or multimode optical fibers on top of an optoelectronic emitter array. Electrostatic forces are used to align copper-coated optical fibers within adhesive filled holes. The manufacturing and alignment performance of a microholder with a hole diameter of 1000 µm are fully characterized. The outer diameter of the optical single-mode fiber is 125 µm including the cladding. A submicron alignment accuracy can be inferred from the measurements taken. The sensitivity of the alignment procedure has been found to be between 0.25 and 1 µm per volt depending on the clamping distance. The combination of the electrostatic movement and the optical monitoring of the fiber position in a closed-loop feedback system yield a highly accurate and sensitive active alignment system. © 2005 IEEE.
Original language | English |
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Pages (from-to) | 2634-2636 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 17 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 2005 |
Keywords
- Microassembly
- Microelectromechanical devices
- Optical coupling
- Optical fiber couplers