| Marc De Leenheer | b931137 | 2015-07-09 11:36:49 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onlab.util; |
| 17 | |
| 18 | /** |
| 19 | * Telecom optical wavelength bands: O, E, S, C, L and U bands. |
| 20 | * |
| 21 | * See ITU-T G-Series Recommendations, Supplement 39 |
| 22 | */ |
| 23 | public final class Spectrum { |
| 24 | |
| 25 | private Spectrum() { |
| 26 | } |
| 27 | |
| 28 | // O band (original): 1260 to 1360 nm |
| 29 | public static final Frequency O_BAND_MIN = Frequency.ofTHz(220.436); |
| 30 | public static final Frequency O_BAND_MAX = Frequency.ofTHz(237.931); |
| 31 | |
| 32 | // E band (extended): 1360 to 1460 nm |
| 33 | public static final Frequency E_BAND_MIN = Frequency.ofTHz(205.337); |
| 34 | public static final Frequency E_BAND_MAX = Frequency.ofTHz(220.436); |
| 35 | |
| 36 | // S band (short wavelength): 1460 to 1530 nm |
| 37 | public static final Frequency S_BAND_MIN = Frequency.ofTHz(195.943); |
| 38 | public static final Frequency S_BAND_MAX = Frequency.ofTHz(205.337); |
| 39 | |
| 40 | // C band (conventional): 1530 to 1565 nm |
| 41 | public static final Frequency C_BAND_MIN = Frequency.ofTHz(191.561); |
| 42 | public static final Frequency C_BAND_MAX = Frequency.ofTHz(195.943); |
| 43 | |
| 44 | // L band (long wavelength): 1565 to 1625 nm |
| 45 | public static final Frequency L_BAND_MIN = Frequency.ofTHz(184.488); |
| 46 | public static final Frequency L_BAND_MAX = Frequency.ofTHz(191.561); |
| 47 | |
| 48 | // U band (ultra-long wavelength): 1625 to 1675 nm |
| 49 | public static final Frequency U_BAND_MIN = Frequency.ofTHz(178.981); |
| 50 | public static final Frequency U_BAND_MAX = Frequency.ofTHz(184.488); |
| 51 | } |