An edge emitting laser that emits a single mode using photonic mirrors. In an embodiment, the cleaning device includes a gas supply device and a gas discharge device that produce a flow of cleaning gas into the exposure zone. The cards include information relating to the usage of the discovered objects as well as provide a method whereby the cards can interact based on predetermined orientation. The semiconductor package includes a guide ring formed at a periphery of the electrode between the first substrate and the second substrate. The carry-on luggage region can be enclosed on up to three sides to allow access to the carry-on luggage region from only one side or can be open on all four sides to accommodate extra large luggage. Preferably, said respiratory cycles are controlled under pressure, so that the volumes as inspired by the patient are maintained within a volume range, comprising a lower volume limit and an upper volume limit, which are previously determined.