𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Single phase-shifted DFB laser diodes

✍ Scribed by C. Ferreira Fernandes

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
191 KB
Volume
17
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Figure 3 Simultaneous plot of the LHS of Eqs. 15 and 16 on the ␤ ᎐␤ plane showing an intersection 1 2 complicated, and we do not address it. As stated earlier in the Introduction, a waveguide with a taper or a flare is expected to sustain local modes for which the z-component of the propagation constant ␤ depends on the variable z. The question remains whether such a waveguide can sustain global modes also, that is, modes whose ␤-values are independent of z.

We obtain an affirmative answer from the rather surprising result that even global modes, although rare, are possible, and they are attenuated in our case because of the flare.

📜 SIMILAR VOLUMES

Single longitudinal mode operation in ph
Single longitudinal mode operation in phase-shifted DFB laser diodes
✍ C. Ferreira Fernandes 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 165 KB

and three modes corresponding to s 1. In Figure 3, which is a plot of the LHS of the cutoff condition for the second Ž . case Case II: a s 20 m and b s 30 m , we get four cutoff ␤-values corresponding to s 0 and another four cutoff ␤-values corresponding to s 1. Again, in Figure 4, Ž . when a s 10 m

Single-mode yield in DFB laser diodes wi
Single-mode yield in DFB laser diodes with reflecting facets
✍ Carlos Alberto Ferreira Fernandes 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 220 KB

## Abstract Conventional DFB laser diodes present symmetric emission patterns, thus making these structures inadequate as single‐mode lasers. The simplest way of achieving single longitudinal‐mode operation is to make one or more facets as cleaved, rather than using AR coating. Single‐mode yield in

Design of multiwavelength DFB fiber lase
Design of multiwavelength DFB fiber laser with equivalent phase shifts
✍ Linghui Jia; Zuowei Yin; Liang Zhang; Xiangfei Chen 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 617 KB

## Abstract A dual‐wavelength distributed feedback fiber laser with two equivalent phase shifts is proposed and demonstrated experimentally. By studying varied parameters of the fiber laser, which show different impacts on the lasers' characteristic, a dual‐wavelength laser of 31 pm spacing is desi

Laterally Coupled InGaN/GaN DFB Laser Di
Laterally Coupled InGaN/GaN DFB Laser Diodes
✍ Schweizer, H. ;Gr�beldinger, H. ;Dumitru, V. ;Jetter, M. ;Bader, S. ;Br�derl, G. 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 113 KB 👁 2 views
Single frequency single polarization DFB
Single frequency single polarization DFB fiber laser
✍ S.A. Babin; D.V. Churkin; A.E. Ismagulov; S.I. Kablukov; M.A. Nikulin 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 104 KB

On the base of the phase shifted fiber Bragg grating of 4 cm length written in the active non-PM Yb-doped fiber, a resonator with distributed feedback (DFB) has been formed. The single frequency single polarization unidirectional generation with the output power up to 4.5 mW has been obtained. The s

Wavelength-tunable optical filters with
Wavelength-tunable optical filters with phase-shifted DFB structures
✍ H. Ghafouri-Shiraz; S. H. Lew 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 208 KB

A new wa¨elength-tunable optical filter which is based on a phase-shift-controlled distributed feedback structure with two phase 1 4