| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onlab.util; |
| |
| /** |
| * Telecom optical wavelength bands: O, E, S, C, L and U bands. |
| * |
| * See ITU-T G-Series Recommendations, Supplement 39 |
| */ |
| public final class Spectrum { |
| |
| private Spectrum() { |
| } |
| |
| // O band (original): 1260 to 1360 nm |
| public static final Frequency O_BAND_MIN = Frequency.ofTHz(220.436); |
| public static final Frequency O_BAND_MAX = Frequency.ofTHz(237.931); |
| |
| // E band (extended): 1360 to 1460 nm |
| public static final Frequency E_BAND_MIN = Frequency.ofTHz(205.337); |
| public static final Frequency E_BAND_MAX = Frequency.ofTHz(220.436); |
| |
| // S band (short wavelength): 1460 to 1530 nm |
| public static final Frequency S_BAND_MIN = Frequency.ofTHz(195.943); |
| public static final Frequency S_BAND_MAX = Frequency.ofTHz(205.337); |
| |
| // C band (conventional): 1530 to 1565 nm |
| public static final Frequency C_BAND_MIN = Frequency.ofTHz(191.561); |
| public static final Frequency C_BAND_MAX = Frequency.ofTHz(195.943); |
| |
| // L band (long wavelength): 1565 to 1625 nm |
| public static final Frequency L_BAND_MIN = Frequency.ofTHz(184.488); |
| public static final Frequency L_BAND_MAX = Frequency.ofTHz(191.561); |
| |
| // U band (ultra-long wavelength): 1625 to 1675 nm |
| public static final Frequency U_BAND_MIN = Frequency.ofTHz(178.981); |
| public static final Frequency U_BAND_MAX = Frequency.ofTHz(184.488); |
| } |