Table 2 Exemplar design parameters of a one-meter-long homogeneously side-emitting waveguide.

From: Light extraction from fundamental modes in modulated waveguides for homogeneous side-emission

Fiber sections (cm)

Period of sinusoidal modulation in core radius (µm)

Period of sinusoidal modulation in core refractive index (µm)

Attenuation constant (dB/m)

Slab waveguide

Step index fiber

Slab waveguide

Step index fiber

0–10

115.3

239.0

207.1

167.2

4.6

10–20

133.4

236.7

209.2

168.3

5.1

20–30

121.5

234.0

211.7

169.6

5.8

30–40

102.9

231.0

214.7

171.1

6.7

40–50

143.2

227.2

218.8

173.5

7.9

50–60

175.5

222.2

224.5

176.9

9.7

60–70

156.7

215.3

233.2

182.3

12.5

70–80

155.0

204.3

249.1

191.0

17.6

80–90

198.2

177.6

309.4

215.2

30.1

90–100

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  1. Average core radius: 10 µm.
  2. Slab core height: 20 µm.
  3. Core refractive index: 1.4600.
  4. Cladding refractive index: 1.4590.
  5. Amplitude of modulation in fiber core radius: 1 µm.
  6. Amplitude of modulation in slab core thickness: 2.50 µm.
  7. Amplitude of modulation in core refractive index: 5 × 10−4.