Efficient coupling between laser diodes with a highly elliptic field and single-mode fibers by means of GIO fibers

Ogura, Atsushi; Kuchiki, S.; Shiraishi, Kazuyuki; Ohta, K.; Oishi, Iwao

doi:10.1109/68.959360

Cited by 14 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Coupling loss depends on lateral displacement, longitudinal displacement, tilt, and axial rotation. [54] The experimental results are demonstrated in Fig. 7.…”

Section: Coupling Efficiencymentioning

confidence: 99%

Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure

Liu¹,

Qu²,

Chen³

et al. 2011

Chinese Phys. B

View full text Add to dashboard Cite

The 850-nm oxide-confined vertical-cavity surface-emitting lasers with petal-shape holey structures are presented. An area-weighted average refractive index model is given to analyse their effective index profiles, and the graded index distribution in the holey region is demonstrated. The index step between the optical aperture and the holey region is obtained which is related merely to the etching depth. Four types of holey vertical-cavity surface-emitting lasers with different parameters are fabricated as well as the conventional oxide-confined vertical-cavity surface-emitting laser. Compared with the conventional oxide-confined vertical-cavity surface-emitting laser without etched holes, the holey vertical-cavity surface-emitting laser possesses an improved beam quality due to its graded index distribution, but has a lower output power, higher threshold current and lower slope efficiency. With the hole number increased, the holey vertical-cavity surface-emitting laser can realize the single-mode operation throughout the entire current range, and reduces the beam divergence further. The loss mechanism is used to explain the single-mode characteristic, and the reduced beam divergence is attributed to the shallow etching. High coupling efficiency of 86% to a multi-mode fibre is achieved for the single-mode device in the experiment.

show abstract

“…Coupling loss depends on lateral displacement, longitudinal displacement, tilt, and axial rotation. [54] The experimental results are demonstrated in Fig. 7.…”

Section: Coupling Efficiencymentioning

confidence: 99%

Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure

Liu¹,

Qu²,

Chen³

et al. 2011

Chinese Phys. B

View full text Add to dashboard Cite

show abstract

“…Compared with butt-lens coupling schemes employing a combination of anamorphic or cylindrical lenses [1][2][3] or employing graded-index oval-core (GIO) fibers [4], employing lensed fibers is compact. The coupling efficiency is improved by using a microlens on the end of the fiber to match both the spot sizes and the wavefront of the laser beam with those of the fiber [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

A novel scheme of hyperbolic-end microlens using the arc technology

Yang

2009

Optik

View full text Add to dashboard Cite

“…Another all-fiber solution was use of graded-index ͑GRIN͒ multimode fibers ͑MMFs͒. [7][8][9][10] Because of the quadratic index profile, the GRIN MMF acts as a lens element when an appropriate length is spliced to a single-mode fiber ͑SMF͒, and the technique can provide several advantages over a conventional bulk lens media such as a common fiber͞lens diameter, a stable fused fiber interface, and a small form factor. 7 Figure 1 schematically shows various fiber interconnecting techniques that use GRIN MMF.…”

Section: Introductionmentioning

confidence: 99%

All-fiber spot-size transformer for efficient free-space optical interconnecting devices

Kim

2003

Appl. Opt.

View full text Add to dashboard Cite

A new concatenated configuration of optical fibers is proposed to improve misalignment tolerance and working distance in a free-space optical interconnection. The structure is composed of three segments: a thermally expanded core fiber, a coreless silica fiber, and a claddingless graded-index fiber. A numerical analysis for the design of each fiber segment is performed completely, and the device characteristics are experimentally evaluated in terms of the tolerances for a 1-dB coupling-loss increment against longitudinal, transverse, and angular misalignments.

show abstract

Efficient coupling between laser diodes with a highly elliptic field and single-mode fibers by means of GIO fibers

Cited by 14 publications

References 4 publications

Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure

Graded index profiles and loss-induced single-mode characteristics in vertical-cavity surface-emitting lasers with petal-shape holey structure

A novel scheme of hyperbolic-end microlens using the arc technology

All-fiber spot-size transformer for efficient free-space optical interconnecting devices

Contact Info

Product

Resources

About