A number. Throughout this disclosure and in the appended claims, occasionally reference may be made to “a number” of items. Such references to “a number” mean any integer greater than or equal to one. When “a number” is used in this way, the word describing the item(s) may be written in pluralized form for grammatical consistency, but this does not necessarily mean that multiple items are being referred to. Thus, for example, a phrase such as “a number of active optical devices, wherein the active optical devices . . . ” could encompass both one active optical device and multiple active optical devices, notwithstanding the use of the pluralized form.
The fact that the phrase “a number” may be used in referring to some items should not be interpreted to mean that omission of the phrase “a number” when referring to another item means that the item is necessarily singular or necessarily plural.
In particular, when items are referred to using the articles “a”, “an”, and “the” without any explicit indication of singularity or multiplicity, this should be understood to mean that there is “at least one” of the item, unless explicitly stated otherwise. When these articles are used in this way, the word describing the item(s) may be written in singular form and subsequent references to the item may include the definite pronoun “the” for grammatical consistency, but this does not necessarily mean that only one item is being referred to. Thus, for example, a phrase such as “an optical socket, wherein the optical socket . . . ” could encompass both one optical socket and multiple optical sockets, notwithstanding the use of the singular form and the definite pronoun.